13a) Given 2,000 invested each and every year for 30 years with an average return of 7%, how much would this total at the end of 30 years? b) Given 2,500 invested each and every year for 25 years with an average return of 7%, how much would this total at the end of 25 years? 13 13c) What present value is required to have an annual payment of 15,000 a year for 10 year when the appropriate r is 10%? 13d) What annual payment perpetuity can be purchased for 10,000 when r is 12%? 13e) What present value is needed to buy a perpetuity of 1,000 a year when r is 8%