plzz help me

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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

  • plzz help me -

    (5.4) x (60) = 324 calories

    (210) / (60) = 3.5 hours or 7/2 hours

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