Assume Eric Sanchez saves $42 a month by using coupons and doing comparison shopping. a. What is the annual savings amount? b. What would be the future value of this annual amount over 18 years, assuming an interest rate of 9 percent? (Exhibit 1 -A, Exhibit 1 . B. Exhibit 1.C. Exhibit 1.D) Note: Use appropriate factor(s) from the tables provided. Round time value factor to 3 decimal places and final answers to 2 decimal places