An investment offers $6,400 per year, with the first payment occurring one year from now. The required return is 6 percent. a. What would the value be today if the payments occurred for 15 years? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What would the value be today if the payments occurred for 40 years? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) What would the value be today if the payments occurred for 75 years? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. d. What would the value be today if the payments occurred forever? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) a. b. c. d. Present value of 15 annual payments Present value of 40 annual payments Present value of 75 annual payments Present value of annual payments forever