#### Answer

$A_0$,
$A$

#### Work Step by Step

In the model for exponential growth or decay, $A=A_0e^{kt}$, the amount at $t=0$ is represented by $A_0$. The amount at time $t$ is represented by $A$.

Published by
Pearson

ISBN 10:
0-13446-914-3

ISBN 13:
978-0-13446-914-0

$A_0$,
$A$

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