#### phillipsjr9800

##### New member

- Joined
- Apr 6, 2008

- Messages
- 3

I know the formual is A=Pe^rt

For this problem I am give the amount after 10 years and the interest rate.

So it should look like this to start 10,000 = Pe^.045t

now I need to find the initial investment and time to double.

This is where I get lost.

Any help would be greatly apprecated.