#### Answer

15%

#### Work Step by Step

commission = commission rate $\times$ sales
645 = r $\times$ 4300 divide both sides by 4300
$\frac{645}{4300}$ = $\frac{r\times4300}{4300}$
0.15 = r
15%=r
The commission rate is 15%.

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

15%

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