Is the equation a = 21000 ( 1 − .12 )^t a model of exponential growth or exponential decay, and what is the rate (percent) of change per time period?

exponential decay and 12%

Step-by-step explanation:

It is an exponential decay because it is going to be a fraction. The rate describes what happens per time period. That means the rate will be 12%.

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step-by-step explanation:

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