You put $9500 in the account with the annual interest rate of 13%. Reply following questions, rounding answers to nearest hundredth of a year (e.g. 12.34 years).
Find how long will it take for funds to double if interest is compounded annually (once per year)?
Find how long will it take for funds to double if interest is compounded quarterly (four times per year)?
Find how long will it take for funds to double if interest is compounded monthly (12 times per year)?