#### Answer

In 2066, the area is unsafe for human habitation.

#### Work Step by Step

Plug in 80 for $x$ into function $f$.
$f(80)=1000(.5)^{\frac{80}{30}}\approx157.5\gt100$
In 2066, the area is unsafe for human habitation.

Published by
Pearson

ISBN 10:
0-32178-228-3

ISBN 13:
978-0-32178-228-1

In 2066, the area is unsafe for human habitation.

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