A woman deposited $10,000 into an account at her credit union. The money was left on deposit for 10 years. During the first 5 years, the woman earned 9% interest, compounded monthly. The credit union...

A woman deposited $10,000 into an account at her credit union. The money was left on deposit for 10 years. During the first 5 years, the woman earned 9% interest, compounded monthly. The credit union then changed its interest policy; as a result, in the second 5 years the woman earned 6% interest, compounded quarterly. a. How much money was in the account at the end of the 10 years? b. Calculate the rate of return that the woman received.