21. A lump-sum investment of $42,800 earns 10.25 percent interest, compounded annually. If the money is invested for 75 years, how much compound interest is earned on the investment? (4 points) 22. The present value of the following cash flow stream is $64,290 when discounted at 8 percent, compounded annually. What is the value of the missing cash flow? (4 points) Year 1 2 3 Cash flow $20,600 $23,870 ? $15,200