#### Answer

width is 4 inches

#### Work Step by Step

area=length x width
$84=21w$
$84\div21=21w\div21$
$4=w$

Published by
Pearson

ISBN 10:
0321955048

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

width is 4 inches

area=length x width
$84=21w$
$84\div21=21w\div21$
$4=w$

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