College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Review - Exercises - Page 77: 50


$\approx3.8\times 10^{9}$ times

Work Step by Step

$80\displaystyle \frac{times}{minute}*\frac{60 minutes}{hour}*\frac{24 hours}{day}*\frac{365 days}{year}*90 years\approx 3.8\times 10^{9}$ times
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