If I were to accumulate five hundred thousand dollars in twenty years, what's the amount I need to deposit today that pays an interest rate of fifteen percent. What's the future value if I plan on investing two hundred thousand for five years and the interest rate is five percent. What is the interest rate for an initial investment of one hundred thousand dollars to grow to three times itself in ten years. If my company bought an annuity that will pay fifty thousand per year for ten years at an eleven percent discount rate, what is the value of the annuity on the purchase date if the first annuity payment is made on the date of purchase. What is the rate of the return required to accumulate four hundred thousand dollars if I invest ten thousand dollars every year for twenty years. I have to assume all payments are made at the end of the period.