Find the weighted mean of the numbers in the table. Round to the nearest tenth.A telephone company kept track of the calls for the correct time during a 
period for two weeks. The results are shown in the table.
A. 61.6 calls
B. 59.6 calls
C. 62.0 calls
D. 61.8 calls
Answer: D
Mathematics
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Add or subtract as indicated. Express the answer as a single polynomial in standard form.(2x5 - 5x3) + (3x5 + 3x3)
A. 5x10 - 2x6 B. 3x16 C. 3x8 D. 5x5 - 2x3
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Find the critical numbers of 
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Solve the variation problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 50 seconds with an average speed of 3 feet per second. Find the average speed of the swimmer if it takes 30 seconds to finish the race.
A. 6 feet per second B. 7 feet per second C. 4 feet per second D. 5 feet per second
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Find the effective rate of interest.8.75% compounded quarterly
A. 9.655% B. 8.955% C. 9.041% D. 8.873%
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