i am really needing help with questions 2, 5, and 6. please help me, but not with excel

4. The following six parts are ALL based on the status quo of company BW. (1) Company BW has issued 10,000 zero-coupon bonds with a face value of $1,000. Those bonds will mature in 8 years and the current market price is $576.18 per bond. Marginal corporate income tax rate is 20%, find the annual after-tax effective cost of debt. [4 points] (2) Company BW has borrowed $2,500,000 from a bank. The nominal interest rate is 6.6% and BW is making monthly payment. Find the annual after-tax effective cost of bank loan. [4 points] (3) Company BW has 50,000 shares of preferred stock outstanding. The par value is $10 and dividend rate is 12%. Dividends are paid every six months and the current market price of the preferred is $8.76 per share. Find the annual effective cost of preferred stocks. [4 points] (4) Company BW has 1,000,000 shares outstanding and the market price is $22 per share. Investors believe that company BW's beta is 1.78 and market risk premium is 8.5%. If risk-free 1 rate is 2.5%, which is the cost of common stocks? [4 points] (5) Find the overall (annual) cost of capital for BW (WACC), based on questions 4.1-4.4. [5 points] (6) Company BW has the following two investment opportunities (A and B) Which project is better, according to MIRR? [10 points] Which project is better, according to Discounted Payback period? [10 points] Net Cash Flows End of Year Project A Project B 0 -4,000 -5,500 1 1,500 2 3,000 2,500 23 3,500 2,800 1,900