You now have $20,000 which can be invested at 9% per year. For how many years can you spend $2671? a. b. What is the most you can spend per year for the next 20 years? C. If you borrowed that $20,000 to be paid back over 13 years at 9%, what are your annual payments? d. How much must you save per year for 13 years at 9% to accumulate $20,000