Answer
The tax rate is 7%.
Total cost is $89.88.
Work Step by Step
$5.88=(r)(84)$
$5.88\div84=(r)(84)\div84$
$0.07=r$
$cost=84+5.88$
$cost=89.88$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 6 - Percent - 6.6 Solving Application Problems with Percent - 6.6 Exercises - Page 439: 6
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