Can someone actually answer these questions? I'm not looking just for the answer. I'm looking to learn.

Need help bad..

During the last few years, Harry Davis Industries has been too constrained by the high cost of capital to make many capital investments. Recently, though, capital costs have been declining, and the company has decided to look seriously at a major expansion program that has been proposed by the marketing department. Assume that you are an assistant to Leigh Jones, the financial vice-president. Your first task is to estimate Harry Davis's cost of capital. Jones has provided you with the following data, which she believes may be relevant to your task The firm's tax rate is 35% The current price of Harry Davis's 6% coupon, semiannual payment, noncallable bonds with 15 years remaining to maturity is $1,065.27. Harry Davis does not use short-term interest-bearing debt on a permanent basis. New bonds would be privately placed with no flotation cost Harry Davis's common stock is currently selling at $50 per share. Its last dividend (Do) was $2.75, and dividends are expected to grow at a constant rate of 4.5% in the foreseeable future. Harry Davis's beta is .75, the yield on T-bonds is 4.9%; and the market risk premium is estimated to be 8%. For the over-own- bond-yield-plus-judgmental-risk-premium approach, the firm uses a 3.7% judgmental risk premium Harry Davis's target capital structure is 30% long-term debt and 70% common equity