Chapter 1 - Expressions, Equations, and Inequalities - 1-2 Properties of Real Numbers - Practice and Problem-Solving Exercises: 83

15

Work Step by Step

We first simplify the exponents in the parenthesis, then we simplify what's in the parenthesis. We have $(40+24)\div(8-2^{2})-1=(40+24)\div(8-4)-1=64\div4-1=16-1=15$.

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