#### Answer

[20,+$\infty$)

#### Work Step by Step

the domain
x-20 $\geq$ 0
x$\geq$ 20
[20,+$\infty$)

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

[20,+$\infty$)

the domain
x-20 $\geq$ 0
x$\geq$ 20
[20,+$\infty$)

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