Answer problem and show work please

19. What is the value of a share of Henley Inc. to an investor who requires a 13 percent rate of return if Henley's last dividend was $1.50? Assume earnings and dividends are expected to grow indefinitely at a rate of 7% per year. 20. Zero-Sum Enterprise pays an annual dividend of $1.40 per share and neither earnings nor dividends are expected to grow in the future. What is the value of Zero-Sum's stock to an investor who requires a 16 percent rate of return? 21. What is the net present value of a project that requires an initial investment of $76,000 and produces net cash flows of $22,000 per year for 7 years? Assume the discount rate is 15 percent