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Working alone, pump A can empty a pool in 3 hours. Working alone, pump B can empty the same pool in 2 hours. Working together, how many minutes will it take pump A and pump B to empty the pool?

The value of (1.3333)(0.6666)(1.125)/(0.75)(0.8)(0.8333) is closest to

Having received his weekly allowance, John spent 3/5 of his allowance at the arcade. The next day he spent one third of his remaining allowance at the toy store, and then spent his last $0.80 at the candy store. What is John’s weekly allowance?

Working together, 7 identical pumps can empty a pool in 6 hours. How many hours will it take 4 pumps to empty the same pool?

In 2003, the number of girls attending Jefferson High School was equal to the number of boys. In 2004, the population of girls & the population of boys both increased by 20%. Which of the following could be the total student population at Jeff HS in 2004?

In 2008, the total revenue from movies was 842.1 million dollars. If Rocky XII generated 4.2 million dollars in revenue, approximately what percent of the total revenue was generated by Rocky XII?

If y is 80 percent greater than x, then x is what percent less than y?

5√2 percent of 1/√200 =