How much would you have to invest today to receive the following ? Calculate answer using the formuld and financial calculator methods, a) 4 12,500 in 7 years at 11 percent. Do not round calculations. Round fonal answer to a decimal places b) $ 16, 100 in 15 years at 10 percent. c) & 6, 250 each year for 14 years at 8%. d) $43,000 each year for 30 years at 6ro