A population of a town P, in thousands, is modeled by P = 20 * (1.5)^t where t is the number of centuries since 1800.

Respond to the following in complete sentences:

1. What is the growth rate or percent increase per century for this population?

2. Why is the percent increase for each decade not 5%?

3. How do we find the growth factor per decade? How do you know?

4. How do we find the growth rate or percent increase per decade?