2. When Les and Lou had a child, they decided to start a college fund so they could be sure their child could afford college. They began putting $475 in this account every month. The best account they could find pays 5.2% interest, compounded monthly. a. In 18 years, it will be time to use the money for college expenses. At that time the deposits will stop. How much money will be in the account if they stick to the plan for the entire 18 years? b. Because they can pay for college on a monthly basis, they will withdraw money from this account in equal monthly installments for 4 years. What will that monthly withdrawal be? (If you could not answer part a, use $500,000 for the amount in the account at the end.) c. What is the effective annual rate on their account?