Solve the problem.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: 
How many hours of study are needed to score 90? Round your answer to the nearest hundredth, if necessary.
A. 2.74 hr
B. 7.85 hr
C. 27.40 hr
D. 101.14 hr
Answer: A
Mathematics
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Solve.The manager of a video store recorded the number of video tapes borrowed each day for 12 consecutive days. The results were as follows. What was the median number of video tapes borrowed? 
A. 243 B. 234 C. 252 D. 226.5
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Factor completely, or state that the polynomial is prime.16x3 - 16x
A. x(x + 4)(x - 4) B. 16x(x2 + 1) C. 16x(x + 1)(x - 1) D. 16x(x2 - 1)
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The general term of a sequence is given. Find the indicated partial sum. an = 
; S4
A. 
B. 
C. - 
D. - 
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Find the value for the function.Find f(-2) when f(x) = 
.
A. - 
B. - 
C. - 10
D. 
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