Your grandmother deposited $10,000 inan investment account on the day you were born to help pay the tuition when you go to college. If the account was worth $50,000 seventeen years after she made the...

Your grandmother deposited $10,000 inan investment account on the day you were born to help pay the tuition when you go to college. If the account was worth $50,000 seventeen years after she made the deposit, what was the rate of return on the account?