Joe purchases an annuity with payments of 10 that are made at the end of each quarter for the first year, 15 at the end of each quarter for the second year, 20 at the end of each quearter for the third year and so on for a total of 10 years. The nominal interest rate compounded quarterly is 8.0%. Write the annuity symbol for this annuity and solve for the present value. show and alternate formula that represents the present value of this annuity.