all 3 please!

Neptune Corporation has a capital structure of 40% debt and 60% common equity. This capital structure is expected not to change. The firm's tax rate is 21%. The firm can issue the following securities to finance capital investments: Debt: Capital can be raised through bank loans at a pretax cost of 6.9%. Also, bonds can be issued at a pretax cost of 9.8%. Common Stock: Retained earnings will be available for investment. In addition, new common stock can be issued at the market price of $98. Flotation costs will be $3 per share. The recent common stock dividend was $3.17. Dividends are expected to grow at 4% in the future. What is the firm's cost of external equity? SET YOUR CALCULATOR TO 4 DECIMAL PLACES AND ROUND TO 2 DECIMAL PLACES AT THE END. DO NOT ENTER THE % SIGN. IF YOUR ANSWER IS 7.7011%, FOR EXAMPLE, ENTER 770. Neptune Corporation has a present capital structure consisting of common stock (10 million shares) and debt ($150 million, 10% coupon rate). The company needs to raise $48 million and is undecided between two financing plans. Plan A: Equity financing. Under this plan, an additional amount of common stock will be sold at $10 per share. Plan B: Debt financing, Under this plan, the firm will issue 10% coupon bonds. At what level of operating income (EBIT) will the firm be indifferent between the two plans? Assume a 21% marginal tax rate. Consider the following returns and states of the economy for Neptune Corporation: Economy Probability Return Weak 40% 2% Normal 50% 14% Strong 10% 35% What is the standard deviation of the firm's returns? SET YOUR CALCULATOR TO FOUR DECIMAL PLACES AND ROUND TO 2 DECIMAL PLACES AT THE END. DO NOT ENTER THE %. FOR EXAMPLE, IF YOUR ANSWER IS 7.7011% ENTER IT AS 7.70