Your parents will retire in 18 years. They currently have $360,000 saved, and they think they will need $1,150,000 at retirement. What annual interest rate must they earn to reach their goal, assuming they don't save any additional funds? Round your answer to two decimal places. % You have $6,138.86 in a brokerage account, and you plan to deposit an additional $5,000 at the end of every future year until your account totals $220,000. You expect to earn 12% annually on the account. How many years will it take to reach your goal? Round your answer to the nearest whole number. years