If you invest $12,500 per period for the following number of periods is received at the beginning of each year. (Annuity in advance) (Use a Financial calculator to arrive at the answers. Round the final answers to the nearest whole dollar.) a. 10 years at 9 percent. Future value $ b. 15 years at 11 percent. Future value $ c. 25 periods at 13 percent. Future value $ x