Required: a. $98,750 received at the end of six years. The discount rate is 5 percent. b. $3,900 received annually at the end of each of the next 15 years. The discount rate is 6 percent. c. A 10 -year annuity of $5,900 per annum. The first $5,900 payment is due immediately. The discount rate is 6 percent. d. $42,000 received annually at the end of years 1 through 5 followed by $17,000 received annually at the end of years 6 through 10 . The discount rate is 12 percent. Note: For all requirements, round discount factor(s) to 3 decimal places, all other intermediate calculations and final answers to the nearest whole dollar amount