#### Answer

20%

#### Work Step by Step

$A=PB$
$18=P(90)$
$\frac{18}{90}=P$
$0.20=P$
$P=0.20$
Change the decimal to a percent by moving the decimal point two spaces to the right.
0.20=20%

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

20%

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