Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-1 Variables and Expressions - Lesson Check - Page 1: 8


$49+0.75n$ is the correct expression.

Work Step by Step

Looking at the table, you can see that there is a single charge of \$49 no matter how many miles are driven. In addition, there is a charge of $\$0.75$ if one mile is driven, $\$0.75\times2$ if two miles are driven, etc. This shows us that the cost increases by $\$0.75$ for each mile driven. Therefore, the correct formula will include a term that multiplies $\$0.75$ by the number of miles driven.
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