FINITE MATH

The problems already have the correct answers. Can you guys show the steps and proof . Thanks

III. Find the Future Value of an Annuity: FV PMT 17t 1. Parents have set up a sinking fund in order to have $120,000 in 15 years for their children college education. How much should be pay semiannually into an account paying 6.8% compounded semiannually? 2, Scooby Doo plans to deposit $100, into an account earning 6% compounded monthly, during 3 years. Find the interest earned during each year of the three years. 3. Condorito establish a sinking fund for home improvement with monthly payments of $2,200 at 6.5% compounded monthly. How long will it take to have $124,520 in the account? How much is the total interest paid? Answers: 1. $2,362.48; 2. Interest 1t year: $40, 2nd year: $100, 3rd year: $200; 3.4.5 years or 54 months, interest is $5,720 rt W. Amortization: 1, wendy plans to purchase an automobile for $28,500. The dealer offers you 0% financing for 60 months or a rebate of $6,000. You can obtain 6.2% financing for 60 months at Banco de Ponce. Which option should you choose