I need help with number 7

(After-tax cost of debt) Melbourne, Inc. has 3% bonds with a yield to maturity of 4.5%. If it is in the 35% marginal tax rate, what is its after-tax cost of debt? (After-tax cost of debt) FitBite, Inc. currently has an outstanding bond that pays interest annually, a coupon rate of 6%, and 5 years until maturity. If it is in the 35% marginal tax rate, what is its after-tax cost of debt? what is the after-tax cost of debt if it pays interest annually? (cost of preferred stock) A company pays an annual perpetual dividend of $3.00 on its preferred stock that is current valued at $45.56. What is its after-tax cost of preferred stock? (cost of preferred stock, w/flotation) A company plans to pay an annual perpetual dividend of $2.00 on its newly issued preferred stock that is current valued at $45. If it faces a 5% flotation cost on this issue, what is its after-tax cost of preferred stock? (cost of common stock, retained earnings) A common stock priced at $78.56 pays an annual dividend of $2.50 which is expected to growth indefinitely at 5% annually. What is its component cost of capital? What is the investor's opportunity cost? (cost of common stock, retained earnings) CJ, Inc's common stock has a beta coefficient of 1.5. The market risk premium is 8% and the risk-free rate of interest is 1.5%. What is CJ's component cost common equity? Cost of common stock, retained earnings) Lemmond, Inc's common stock has a beta coefficient of 1.0. The expected return of market 12% and the risk-free rate of interest is 1.5%. What is Lemmond's component cost common equity? (cost of equity w/Flotation) A common stock priced at $78.56 pays an annual dividend of $2.50 which is expected to growth indefinitely at 5% annually. What is its component cost of capital if it faces a 2% flotation cost? (cost of debt) Mouton Limited, Inc faced an after-tax cost of debt of 3.4% and a yield to maturity of 5%, What is its marginal tax rate? (cost of debt) Mouton Limited, Inc faced an after-tax cost of debt of 8.4% and a yield to maturity What is its marginal tax rate