Solve the problem.From a point on a straight road, John and Fred ride bicycles in opposite directions. John rides 7 miles per hour and Fred rides 6 miles per hour. In how many hours will they be 52 miles apart?
A. 5 hours
B. 3 hours
C. 4 hours
D. Not enough information
Answer: C
Mathematics
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12 yd
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, 
, 
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