Solve the problem.A vertical right circular cylindrical tank measures  high and diameter. It is full of oil weighing . How much work does it take to pump the oil to the level of the top of the tank? Give your answer to the nearest ft ? lb.

A. 6,243,727 ft ? lb
B. 52,031 ft ? lb
C. 12,487,454 ft ? lb
D. 3,121,863 ft ? lb


Answer: D

Mathematics

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