13-19 Toby Martin invests $2,000 atthe end of each year for 10 years in an ordinary annuity at 11% i nterest compounded a nnual ly. What is the final val ue of Toby's i nvestment at the end of year 10? 13-21. Atthe beginning of each period for 10 years, Med Agnes invests $500 semiannually at 6%. What is the cash value of this annuity due at the end of year 10? Jeff Associates borrowed $30,000. The company plans to set up a sinking fund that will repay the loa n at the end of 8 years. Ass um e a 12% interest rate com pounded semiannually. What must Jeff pay into the fund each period of time? 13-22. 13-25A local Dunkin' Donuts franchise must buy a new piece of equipment in 5 years that will cost $88,000. The company is setting up a sinking fund to finance the purchase. What will the quarterly deposit be if the fund earns 8% interest? 13-27. Al Vincent has decided to retire to Arizona in 10 years. What amount should Al invest today so that he will be able to withdraw $28,000 at the end of each year for 15 years after he retires ? Ass um e he ca n i nvest the money at 8% i nterest com pounded annually