Write as a proportion.22.5 is to 90 as 2.5 is to 10.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: B
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?Write the following expression: Think of a number. Subtract 9 from it. Divide the result by 5. Multiply by 5. Add 9. Which of the following describes this expression, given that the number you were thinking of was "x"? ?
A.
?x
B.
?
C.
?
D.
?If x = 12, then the result is 12.
E.
?a, b, and d only
F.
?b and d only
Use Method II to simplify the complex rational expression.
A. - 
B. - 
C. 
D. 
Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long (to the nearest tenth) will it take the ball to fall 227 feet?
A. 3.8 sec B. 2.7 sec C. 8.4 sec D. 2.9 sec
The number of cars sold weekly by a new automobile dealership grows according to a linear growth model. The first week the dealership sold two cars (P0 = 2). The second week the dealership sold six cars (P1 = 6).How many cars were sold in the third week?
A. 10 B. 24 C. 12 D. 18 E. none of these