1. Saul invested a sum of money at 9.5% APR, compounded semiannually. He let the sum accumulate interest for 25 years and now has $31,952.82. What was Saul's initial amount that he invested?
2. Marty invested a sum of money at 9.5% APR, compounded daily. He let the sum accumulate interest for 25 years and now has $31,952.82. What was Marty's initial amount that he invested?
3. Investment A will return to you $2148 in one year if you invest $1750 today. Investment B will return to you $3103 in one year. What is the most you will pay for Investment B?