Assume Eric Sanchez saves $70 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 10 years, assuming an interest rate of 9 percent? (Exhibit 1-A. Exhibit 1 B. Exhibit 1.C. Exhibit 1-D) Note: Use appropriate foctor(s) from the tobles provided. Round time value foctor to 3 decimal places and final answers to 2 decimal places. Exhibit 1-A Future Value (Compounded Sum) of $1 after a Given Number of Time Periods