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February 1, 2015

Homework Help: 4th grade

Posted by VIVI on Saturday, November 14, 2009 at 12:10am.

On the average your heart beats about 72 times per minute. At this rate, about how many times will it beat: a) in a 30-day month; b) in a year; c)in your lifetime, if you live to 72 years of age?

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