Answer
16
Work Step by Step
2r + 4s
Replace r with 6.
Replace s with 1.
2(6) + 4(1)
Using the order of operations, do all multiplications first. Then addition.
= 12 + 4
= 16
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises - Page 662: 4
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