4. Calculating Annuity Present Values An investment offers $6,125 per year for 15 years, with the first payment occurring one year from now. If the required return is 8 percent, what is the value of the investment? What would the value be if the payments occurred for 40 years? For 75 years? Forever? 5. Calculating Annuity Cash Flows For each of the following annuities, calculate the annual cash flow. 6. Calculating Annuity Values For each of the following annuities, calculate the present value