50 POINTS PLS HELP!!!
The amount of money in an account with continuously compounded interest is given by the formula A = Pert, where P is the principal, r is the annual interest rate, and t is the time in years.

Calculate to the nearest tenth of a year how long it takes for an amount of money to double if interest is compounded continuously at 3.4%.

2.0 yr

0.7 yr

4.1 yr

20.4 yr