1. How much must you deposit at the end of each year in an account that pays a nominal annual rate of 20 percent, if at the end of five years you want $10,000 in the account?
2. A leading broker has advertised money multiplier certificates that will triple your money in nine years; that is, if you buy one for $333.33 today, it will pay you $1,000 at the end of nine years. What rate of return will you earn on these money multiplier certificates?