Answer
45
Work Step by Step
The appropriate parenthesis should be $(2\cdot5-\frac{10}{2})\cdot9=(10-5)\cdot9=5\cdot9=45$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set - Page 29: 178
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