please show all work and formulas used!! Number 9 is most important to compete please !!

8. Now suppose that Temp Force's earnings and dividends are expected to decline by a constant 6% per year forever --that is, g = -6%. Why would anyone be willing to buy such a stock, and at what price should it sell? What would be the dividend yield and capital gains yield in each year? 9. Temp Force recently issued preferred stock that pays an annual dividend of $5 at a price of $50 per share. What is the expected return to an investor who buys this preferred stock