please show step by step calculations . no excel working

Question 2: CLO 5 Long-term Financing Choices/CLO 5 Short-term Financial Management (20 marks) a) You have just been hired to compute the cost of capital for debt, preferred stock, and common stock for the Mindflex Corporation.. Cost of common equity: Mindflex's common stock paid a $1.25 dividend last year. In addition, Mindflex's dividends are growing at a rate of 6% per year and this growth rate is expected to continue into the foreseeable future. The price of the stock is currently $30. Cost of debt: Now let's assume that Mindflex's bonds are frequently traded. A Mindflex bond has a $1000 par value (face value) and a coupon rate of 13% that is paid semiannually. The bonds are currently selling for $1,125 and will mature in 20 years. Mindflex's corporate tax rate is 34%. Cost of preferred stock: Mindflex's preferred stock pays a 10% dividend on a $1.25 par value. However, the market price at which the preferred shares could be sold is only $90. The target capital structure is 50% common stock, 15% preferred stock, and 35% debt. What is the Weighted Average Cost of Capital? (3+3+3+3=12 marks) b) A company makes widgets in warehouse for 12 days which takes 17 days to collect on the sale of each widget and takes 15 days to pay invoices to company vendors. Calculate the cash conversion cycle? (4 marks) c) What is the annualized cost of trade credit in percentage (%)? Assuming trade credit terms of 2/10 net 40 and paying the supplier on the 30th day? (4 marks)