9. (10 points) Jane receives a 15-year increasing annuity-immediate paying 10 the first year and increasing by 10 each year thereafter. Mary receives a 15 year decreasing annuity-immediate paying X the first year and de- creasing by each year thereafter. At an effective annual interest rate of 5%, both annuities have the same present value. Calculate X. A. 112 B. 116 C. 120 D. 124 E. None of above 9. (10 points) Jane receives a 15-year increasing annuity-immediate paying 10 the first year and increasing by 10 each year thereafter. Mary receives a 15 year decreasing annuity-immediate paying X the first year and de- creasing by each year thereafter. At an effective annual interest rate of 5%, both annuities have the same present value. Calculate X. A. 112 B. 116 C. 120 D. 124 E. None of above