please answer all 5

1. If the annual discount rate is 6.3%, find the present value of $2,170 received five years from now. 2. Compute the future value of $2,000, if the annual rate of return is 8.5%, and you invest the money today for four years. 3. Assume the total cost of a college education will be $90,000 when your child enters college in 18 years. You have $7,000 to invest today. What annual rate of return must you earn on your investment to cover the cost of your child's education? 4. How long would it take for an investment to triple at a 6% annual rate of return? 5. Katelyn put $12,000 into a savings account three years ago. It paid 2% interest in the first year, and 3% per year for the following two years. What is her account balance today