Answer
Fill the blank with:
$4+0.15x $
Work Step by Step
Translate the text into mathematical expressions.
Monthly cost = "4 ... plus (0.15 per text)"
With $ x $= number of texts,
Monthly cost = $4+0.15x $
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.8 - Modeling with Equations - Concept and Vocabulary Check - Page 121: 3
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