Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - 4.4 Addition and Subtraction of Polynomials - 4.4 Exercise Set - Page 261: 60


$$ \frac{23a}{2}+12 $$

Work Step by Step

We know that the perimeter is equal to the sum of all of the individual side lengths. Adding these side lengths and simplifying, we find: $$4a+7+a+\frac{1}{2}a+5+a+2a+3a\\ \frac{23a}{2}+12 $$
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