A population of 240 animals decreases at an annual rate of 10%. Find the multiplier for the rate of exponential decay.

1-.1

= .9

To find the multiplier for the rate of exponential decay, we need to convert the percentage given into a decimal.

The annual rate of decay is given as 10%, which can be written as 0.10 in decimal form.

Since the rate of decay is a percentage, the multiplier can be found by subtracting the percentage from 1.

Multiplier = 1 - Rate of Decay

In this case, the multiplier would be:
Multiplier = 1 - 0.10
Multiplier = 0.90

So, the multiplier for the rate of exponential decay in this case is 0.90.