1. What is the present value of $200,000 to be received at the end of 13 years at 7% compounded semiannually (round to nearest integer)?
2. How many years does it take for $40,000 to grow to $90,000 assuming 12.4% compounded quarterly (answer format: years + months)?
3. What interest rate (expressed as an annual rate) is required for $100,000 to grow to $1,000,000 in 15 years (assuming monthly compounding) (round to nearest 10th of a percent)?