Answer
Answer Choice $B$
Work Step by Step
Each balloon is 2 dollars, and he has a 10 dollar discount, so the answer is
$y = 2x - 10$
where $x$ is how many balloons he buys, and $-10$ is his discount.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - Common Core Cumulative Standards Review - Selected Response - Page 75: 7
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