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The high-school track measures one quarter of a mile around. How many laps would you have to run in order to run three and a half miles?

A 14

Divide the total number of laps by the length of one lap. 31/2 ÷ 1/4. First, convert the mixed number to a fraction, then divide by 1/4. 7/2 ÷ 1/4 = 28/2, which can be reduced to 14.