2. Future value If you deposit $17,000 in a bank account that pays 12 percent interest annually, how much would be in your account after 3 years? 3. Present value What is the present value of a security that will pay $25,000 in 15 years if securities of equal risk pay 5 percent annually? 4. Finding the required interest rate Your parents will retire in 18 years. They currently have $250,000, and they think they will need $1,000,000 at retirement. What annual interest rate must they earn to reach their goal, assuming they don't save any additional funds 5. How long does it take to double your investment if you invest at a 14% interest rate compounded annually? Solving for N (period)