1. The amount of money at the time t is:

2. Let A(0) = 1 $. Then A(t) = 2 $

If the invested money is compounded daily then the percentage will be . Thus you have to solve for t:

I've got

3. If the invested money is compounded annually then the percentage will be 0.075. Thus you have to solve for t:

I've got

4. Now you have to write a comment!