Solve the problem.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 126 seconds are required to make a 3-by-7 enlargement, find the time required for a 
enlargement.
A. 280 sec
B. 200 sec
C. 320 sec
D. 240 sec
Answer: D
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Evaluate the expression for the given values. If necessary, round to the nearest tenth.
x = 7, y = 5
A. 7 B. 1 C. 5 D. 2
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Find the indicated sum. If necessary, round to four decimal places.S19 for the geometric sequence $900.00, $918.00, $936.36, . . .
A. $22.84 B. $19,271.08 C. $20,556.50 D. $403.07
Solve the rational inequality. Write the solution set in interval notation.
? 0
A. [-8, 7] B. (-7, 8] C. [-7, 8] D. (-8, 7]