#### Answer

286 windows

#### Work Step by Step

Each row of windows has
$(7\times2)+(4\times2)=14+8=22$ windows.
There are 23 floors (rows) of windows.
$\ \ \ 22$
$\underline{\times23}$
$\ \ \ 66$
$\underline{\ 220}$
$\ 286$

Published by
Pearson

ISBN 10:
0321955048

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

286 windows

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