Rewrite the fraction as an equivalent fraction with the given denominator.- 
= - 
A. - 
B. - 
C. - 
D. - 
Answer: B
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Name the following angle using three kinds of notation, if possible.
A. ?BCA, ?B B. ?BAC, ?B C. ?ABC, ?B D. ACB, ?B
Solve.If y varies directly as the square of x, and y = 720 when x = 6, find y when x = 2.
A. 6480 B. 2160 C. 80 D. 240
Suppose your newspaper is trying to decide between two competing desktop publishing software packages, Macro Publish and Turbo Publish. You estimate that if you purchase x copies of Macro Publish and y copies of Turbo Publish, your company's daily productivity will be
?
?
where U (x, y) is measured in pages per day (U is called a utility function.) If 
, by approximately how many pages per day will productivity increase if x is increased by one unit?
?
A. A productivity increase of approximately 7.16 pages per day.
B. A productivity decrease of approximately 81.00 pages per day.
C. A productivity increase of approximately 89.16 pages per day.
D. A productivity increase of approximately 16.32 pages per day.
E. A productivity increase of approximately 8.16 pages per day.
Find an equation of variation for the given situation. s varies directly as the square of t, and s = 27 when t = 3.
A. s = 9t2
B. s = 3t2
C. s = 
t2
D. s = 
t2