Posted by **bamawam** on Thursday, September 25, 2008 at 11:48pm.

a 140 pund student burns 5.4 calories per minute while playing tennis .after 60 minutes how many calories has the student burned??

also

sam drives at a constant rate of 60 miles per hour . how many hours will it take him to drive 210 miles?

express your answer as a mixed number

plzz help me..

and thank you

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