5-2 If a firm's earnings per share grew from $1 to $2 over a 10-year period, the total growth would be 100 percent, but the annual growth rate would be less than 10 percent. Under what conditions would the annual growth rate actually be 10 percent per year? 5.4 What is the present value of an investment that promises to pay you $1,000 in five years if you can earn 6 percent interest compounded annually? 5-6 To the closest year, how long will it take a $200 investment to double if it earns 7 percent interest? How long will it take if the investment earns 18 percent