please answer all! (this is all part of one question)

A firm has determined its optimal capital structure, which is composed of the following soubles and target market value proportions: DEBT: The firm has 9.5 percent coupon, $1,000 par value bonds outstanding that are currently selling for $1,067. They will mature in 10 years DEBT: The firm has 9.5 percent coupon, $1,000 par value bonds outstanding that are currently selling for $1,067. They will mature in 10 years. PREFERRED STOCK: The firm has determined that it can issue preferred stock at $100 per share. The stock will pay a $12.00 annual dividend. The cost of issuing and selling the preferred stock is $3 per shale. COMMON STOCK: A firm's common stock is currently selling for $55 per share. The last dividend paid was $5.50. Dividends have been growing at a constant rate of 4.5 percent. Flotation costs for common stock are $2.75 per share. Additionally, the firm has a marginal tax rate of 40 percent. The firm also expects to have $1,500,000 of rotained earnings available to reinvest in the comina vear. What is the firm's cost of a new issue of common stock? A. 14.95% B. 14.50% C. 15.03% D. 15.50% What is the firm's weighted average cost of capital up to the point when retained earnings are exhausted? A. 12.10% B. 12.43% C. 12.95% D. 14.95% What is the firm's cost of capital after all of the retained earnings have been exhausted? A. 12.10% B. 14.95% C. 12.95% D. 12.43% At what level of total new financing will the firm exhaust its retained earnings? A. $1,500,000 B. $900,000 C. $2,500,000 D. $600,000