If 6x=60, what is the value of 7x+3?

1. A73
   A
2. B63
   B
3. C55
   C
4. D45
   D

The function j is defined by j(x)=x/8. What is the value of j(48)?

1. A48
   A
2. B40
   B
3. C8
   C
4. D6
   D

k(x)=-1/2x^2+8x+20
The function k gives the estimated number of students in a school organization x years after the organization was established, where 0≤x≤10. Which statement is the best interpretation of k(4) = 44?

1. AIt is estimated there were 4 students in the school organization when it was established.
   A
2. BIt is estimated there were 44 students in the school organization when it was established.
   B
3. CIt is estimated there were 44 students in the school organization 4 years after it was established.
   C
4. DIt is estimated there were 44 students in the school organization 10 years after it was established.
   D

The function t(x)=-3x+74 gives the estimated temperature, in degrees Fahrenheit, of a town x hours after 6 p.m., where 0≤x≤5. What is the best interpretation of -3 in this context?

1. AThe estimated temperature decreases 3 degrees Fahrenheit each hour.
   A
2. BThe estimated temperature decreases 7474 degrees Fahrenheit each hour.
   B
3. CAt 6 p.m., the estimated temperature is --3 degrees Fahrenheit.
   C
4. DAt 6 p.m., the estimated temperature is 5 degrees Fahrenheit.
   D

Which expression is equivalent to 10x^2+130?

1. A10(13x^2)
   A
2. B10(x^2+13)
   B
3. C130(10x^2)
   C
4. D130(10x^2+1)
   D

The function f is defined by f(x)=4√x. For what value of x does f(x)=28?

1. A4
   A
2. B7
   B
3. C16
   C
4. D49
   D

Triangle PQR is similar to triangle STU, where P, Q, aSTUnd R correspond to S, T, and U, respectively. In triangle PQR, the length of PQ is 6 and the length of QR is 24. In triangle STU, the length of ST is 8. What is the length of overlineTUTU?

1. A8
   A
2. B14
   B
3. C32
   C
4. D48
   D

If the graph of 12x+22y=132 is shifted down 4 units in the xy-plane, what is the y-intercept of the resulting graph?

1. A(0,2)
   A
2. B(0,7)
   B
3. C(0,10)
   C
4. D(0,18)
   D

A landscaping company mixes oil with gasoline to power its tools. A chainsaw requires 8 ounces of oil per gallon of gasoline. A lawnmower requires 4 ounces of oil per gallon of gasoline. The company uses a total of 21 ounces of oil in its mixes for the chainsaw and lawnmower. Which of the following equations represents this situation, where x represents the amount of gasoline, in gallons, in the mix for the chainsaw and y represents the amount of gasoline, in gallons, in the mix for the lawnmower?

1. A2(x+2y)=21
   A
2. B2(2x+y)=21
   B
3. C4(x+2y)=21
   C
4. D4(2x+y)=21
   D

18 is 10% of what number?

1. A28
   A
2. B100
   B
3. C162
   C
4. D180
   D

The measure of angle S is 8π/13 radians. The measure of angle T is 3 times the measure of angle S. Which expression represents the measure, in degrees, of angle T？

1. A8/13(90)(3)
   A
2. B8/13(180)(3)
   B
3. C8/13π(90)(3)
   C
4. D8π/13(180)(3)
   D

(x-7)/5+(y+8)/4=0
3x+4y=0
The solution to the given system of equations is (x, y). What is the value of x + y?

1. A-12
   A
2. B-5
   B
3. C-4
   C
4. D12
   D

Each of the following frequency tables represents a data set. Which data set has the greatest mean?

1. A
   
   A
2. B
   
   B
3. C
   
   C
4. D
   
   D

For the linear function g, the graph of y=g(x) in the xy-plane has a slope of 5 and passes through the point (2, 47). Which equation defines g?

1. Ag(x)=37x
   A
2. Bg(x)=37x+5
   B
3. Cg(x)=5x
   C
4. Dg(x)=5x+37
   D

Exactly how many x-intercepts does the graph of f(x)=x(x-10)^2(x-11)^3 have in the xy-plane, where y=f(x)?

1. A0
   A
2. B1
   B
3. C2
   C
4. D3
   D

In triangle RST, the measure of angle R is 29 degrees. Which statement provides sufficient information to prove that triangle RST is isosceles?

1. AThe measure of angle S is 151 degrees.
   A
2. BThe measure of angle S is 61 degrees.
   B
3. CThe measure of angle S is 58 degrees.
   C
4. DThe measure of angle S is 29 degrees.
   D

Ifa=6k+5r and b=9k-12r+3, which expression is equivalent to a-b?

1. A-3k+17r-3
   A
2. B-3k+17r+3
   B
3. C-3k-7r+3
   C
4. D-3k-7r-3
   D

x^2-49/16=0
How many distinct real solutions does the given equation have?

1. AZero
   A
2. BExactly one
   B
3. CExactly two
   C
4. DInfinitely many
   D

y>-7/2x+17
For which of the following tables are all the values of x and their corresponding values of y solutions to the given inequality?

1. A
   
   A
2. B
   
   B
3. C
   
   C
4. D
   
   D

A polygonal chain is a connected series of line segments whose length is defined as the sum of the lengths of the line segments it is made of. A polygonal chain with a length of 33 centimeters (cm) is extended by adding line segments that each have a length of 8-r cm. Which function f represents the total length, in cm, of the extended polygonal chain after x line segments are added?

1. Af(x)=33(8-r)+x
   A
2. Bf(x)=8x-rx+33
   B
3. Cf(x)=8x-r+33
   C
4. Df(x)=(41-r)x
   D

A chemist combines 30 grams of compound A, 45 grams of compound B, and x grams of compound C. The resulting mixture has a mass of 135 grams. What is the value of x?

1. A15
   A
2. B30
   B
3. C45
   C
4. D60
   D

For a study, a group of chipmunks will be selected from a habitat consisting of 220 chipmunks, and a group of prairie dogs will be selected from a habitat consisting of 190 prairie dogs. Some of the chipmunks and prairie dogs will be in a treatment group, and some of the chipmunks and prairie dogs will be in a control group. Which of the following is necessary for this study to attempt to establish a cause-and-effect relationship between two variables?

1. AThe number of chipmunks in the treatment group is equal to the number of prairie dogs in the treatment group, and the number of chipmunks in the control group is equal to the number of prairie dogs in the control group.
   A
2. BThe chipmunks and the prairie dogs are randomly assigned to the treatment and control groups.
   B
3. CThe chipmunks and the prairie dogs are randomly selected from their respective habitats.
   C
4. DThe average age of the chipmunks in the treatment group is equal to the average age of the prairie dogs in the treatment group, and the average age of the chipmunks in the control group is equal to the average age of the prairie dogs in the control group.
   D

A certain investment account offers a special interest rate for the first 4 months the account is open followed by a lower interest rate for the remainder of the time the account is open. Akeyla opened one of these accounts with an original account balance of $700.00 and did not make any other deposits or withdrawals. 4 months after Akeyla opened the account, the balance had increased by 0.6% of the original balance. 6 months after Akeyla opened the account, the balance had increased by an additional 0.1% of the balance at the end of the first 4 months. Every 2 months after the first 6 months, the balance had increased by an additional 0.1% of the balance 2 months before. Which of the following equations could represent the account balance B(x), in dollars, x months after the account was opened, where x≥4?

1. AB(x)=704.20(1.001)^((x-4)/2)
   A
2. BB(x)=700.00(1.001)^((x-4)/2)
   B
3. CB(x)=704.20(1.001)^(2(x-4))
   C
4. DB(x)=700.00(1.001)^(2(x-4))
   D

√(x+15)^2=x+15
What is the least value of x that is a solution to the given equation?

1. A-16
   A
2. B-15
   B
3. C0
   C
4. D15
   D

The function f is defined by f(x)=a^x-b, where a and b are constants. In the xy-plane, the graph of y=f(x) passes through the points (c, 7) and (2c, 117), where c is a constant. Which of the following could be the value of b?

1. A4
   A
2. B117
   B
3. C110
   C
4. D124
   D

A right rectangular prism has a base area of 16t square centimeters (cm²). The length of the base of the rectangular prism is 8/3 cm, and the height of the rectangular prism is 9 cm. Which expression represents the surface area, in cm², of the right rectangular prism?

1. A32t+96
   A
2. B140t+48
   B
3. C800t+48
   C
4. D144t
   D