Annuity with Change in Interest Rate

Essay

Annuity with change in interest rate.
Jan Green established a savings account for her son's college education by making annual deposits of $9,000 at the beginning of each of six years to a savings account paying 8%. At the end of the sixth year, the account balance was transferred to a bank paying 10%, and annual deposits of $9,000 were made at the end of each year from the seventh through the tenth years. What was the account balance at the end of the tenth year?