Brittney deposits $5,021.00 into an interest-bearing investment account, which is compounded continuously at an interest rate of 3.5%. She decides to not deposit or withdraw any money after the initial deposit. The following function represents the account balance of the savings account after t years.
A(t)= $5,021 * e^(0.035t)
Approximately how many years will it take for the initial deposit to quadruple?