5-3. (Calculating future value) (Related to Finance for Life: Saving for Your First House on page 171) You are hoping to buy a house in the future and recently received an inheri- tance of $20,000. You intend to use your inheritance as a down payment on your house. a. If you put your inheritance in an account that earns a 7 percent interest rate com- pounded annually, how many years will it be before your inheritance grows to $30,000? b. If you let your money grow for 10.25 years at 7 percent, how much will you have? c. How long will it take your money to grow to $30,000 if you move it into an account that pays 3 percent compounded annually? How long will it take your money to grow to $30,000 if you move it into an account that pays 1l percent? d. What does all of this tell you about the relationship among interest rates, time, and