Apipe is leaking at 1.5 cups per day. about how many gallons per week is the pipe leaking?

The answer would be 0.65625

21/36? Since there are 7 days in a week, and the pipe leaks 1.5 cups a day, you multiply 1.5 cups times 7, which equals 10.5 cups. However, there are 16 cups in a gallon. So, you have to put your answer into a fraction. 10.5 over 16, which equals 10.5/16 (and you can simplify this by diving both numbers by 2 until you reach the point in which the numerator AND the denominator can't be divided anymore), or if you don't want decimals, you could put 21/36.