You need $24,656 at the end of seven years, and your only investment outlet is a 8 percent long-term certificate of deposit (compounded annually). With the certificate of deposit, you make an initial investment at the beginning of the first year. (Use a Financial calculator to arrive at the answers. Round the final answers to the nearest whole dollar.) a. What single payment could be made at the beginning of the first year to achieve this objective? Single payment made $ b. What amount could you invest at the end of each year annually for seven years to achieve this same objective? Amount to be paid