Answer:
The deposits will double the initial investment after 5.67 periods
Explanation:
we solve for the time n at which a principal of 1 at 13% interest rate become 2
[tex]1(1+r)^n=FV\\1.13^n=2\\log_{1.13}2 = n\\\frac{log 2}{log 1.13} = 5.671417169[/tex]