Answer
Rate of commission is 15%.
Work Step by Step
$\frac{1170}{7800}=\frac{x}{100}$
$7800x=1170\times100$
$\frac{7800x}{7800}=\frac{117000}{7800}$
$x=15$
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: 14
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