If you save 300.00 per month at an annual rate of 3.5% for 15 years and then start saving 650.00 a month for another 15 years at an annual rate of 6.5%, how much will you have at the end of the thirty years? If you invest 10,000.00 today at a guaranteed 4% interest for three years. The next year you invest 8,000.00 for two years at guaranteed interest of 5.5% and then invest 12,000.00 the next year at 6.5% how much will you have at the end of the three years? If you want to have 5,000,000.00 when you retire in forty years and you can get a 6% interest rate, how much would you have to invest each month? If you borrow 50,000.00 today and you make payments of 656.60 monthly at an interest rate of 4-5%, how many years will it take to pay off the loan? If you start and endowment with 5,000,000.00 and you can give away 325,000.00 a year what is your interest rate