(Compound interest with nonannual periods) a. Calculate the future sum of $8,000, given that it will be held in the bank for 6 years at an APR of 4 percent b. Recalculate part a using compounding periods that are (1) semiannual and (2) bimonthly (every two months) c. Recalculate parts a and b for an APR of 8 percent. d. Recalculate part a using a time horizon of 12 years (the APR is still 4 percent). e. With respect to the effect of changes in the stated interest rate and holding periods on future sums in parts c and d, what conclusions do you draw when compare these figures with the answers found in parts a and b? a. What is the future sum of $8.000 in a bank account for 6 years at an APR of 4 percent? s (Round to the nearest cent)