You're trying to save to buy a new $$205,000$ BMW $3$ series sedan. You have $$55,000$ today that can be invested at your bank. The bank pays $5\mathrm{.}4\%$ annual interest on its accounts.

How long will it be before you have enough to buy the car? $($Do not round intermediate calculations and round your final answer to $2$ decimal places.$)$

Number of years