(Compound annuity) What is the accumulated sum of each of the following streams of payments? a. $490 a year for 8 years compounded annually at 11 percent. b. $96 a year for 7 years compounded annually at 7 percent. c. $33 a year for 11 years compounded annually at 11 percent. d. $27 a year for 4 years compounded annually at 6 percent. a. What is the accumulated sum of $490 a year for 8 years compounded annually at 11 percent? $ (Round to the nearest cent.) b. What is the accumulated sum of $96 a year for 7 years compounded annually at 7 percent? $ (Round to the nearest cent.) c. What is the accumulated sum of $33 a year for 11 years compounded annually at 11percent? $ (Round to the nearest cent.) d. What is the accumulated sum of $27 a year for 4 years compounded annually at 6 percent? $ (Round to the nearest cent.)