Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.10 Internal Notation; Solving Inequalities - A.10 Assess Your Understanding - Page A88: 91

Answer

$21\lt x\lt30$ where $x$ is the age.

Work Step by Step

Based on the statement, we have $21\lt x\lt30$ where $x$ is the age.
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