Find the present value of $3,900 under each of the following rates and periods: (Round your final answer to the nearest penny.) a. 8.9 percent compounded monthly for five years. Present value $ b. 6.6 percent compounded quarterly for eight years. Present value $ c. 4.3 percent compounded daily for four years. Present value $ d. 5.7 percent compounded continuously for three years. Present value $