Solve the problem.One pump can drain a pool in 6 minutes. When a second pump is also used, the pool only takes 4 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 2
min
B. 
min
C. 12 min
D. 22 min
Answer: C
Mathematics
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Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. log60.538
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Mathematics