Could you provide answer in details, with precise explanation of calculations. Thank you in advance!

The following statement of financial position information relates to Tufa Co, a company listed on a large stock market which pays corporation tax at a rate of 30%. The share capital of Tufa Co consists of $12m of ordinary shares and $5m of irredeemable preference shares. The ordinary shares of Tufa Con have a nominal value of $0.50 per share, an ex dividend market price of $7.07 per share and a cum dividend market price of $7.52 per share. The dividend for 207 will be paid in the near future. Dividends paid in recent years have been as follows: The 5% preference shares of Tufa Co have a nominal value of $0.50 per share and an ex dividend market price of $0.31 per share. The long-term borrowings of Tufa Co consist of $10m of loan notes and a $3m bank loan. The bank loan has a variable interest rate. The 7% loan notes have a nominal value of $100 per loan note and a market price of $10234 per loan note. Annual interest has just been paid and the loan notes are redeemable in four years' time at a 5% premium to nominal value. Required: (a) Calculate the after-tax weighted average cost of capital of Tufa Co on a market value basis. (11 marks) (b) Discuss the circumstances under which it is appropriate to use the current WACC of Tufa Co in appraising an investment project. (3 marks) (c) Discuss THREE advantages to Tufa Co of using convertible loan notes as a source of long-term finance. (6 marks)