7. Explain each of the three other approaches to common stock valuation: (a) book value, (b) liquidation value, and (c) price/earnings (PE) multiples. Which of them is considered the best? 8. Explain the linkages among financial decisions, return, risk, and stock value? 9- Assuming that all other variables remain unchanged, what effect would each of the following have on stock price? (a) the firm's premium increases. (b) The firm's required decreases. (c) The dividend expected next year decreases. (d) the rate of growth in dividends is expected to increase