Answer
$7(2x+1)+3(2x+3)$
$area\ is\ (20x+16)\ m^2$
Work Step by Step
The area of the composite figure is the sum of the areas of the two rectangles.
$7(2x+1)+3(2x+3)=14x+7+6x+9=20x+16$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 3 - Section 3.1 - Simplifying Algebraic Expressions - Exercise Set - Page 172: 107
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