I need help with the following problem. Please provide as much explanation as possible so I may fully understand how to work it.

The Paulson Company's year-end balance sheet is shown below. Its cost of common equity is 15%, its before-tax cost of debt is 10%, and its marginal tax rate is 40%. Assume that the firm's long-term debt sells at par value. The firm's total debt, which is the sum of the company's short-term debt and long-term debt, equals $1,182. The firm has 576 shares of common stock outstanding that sell for $4.00 per share.

Calculate Paulson's WACC using market-value weights. Round your answer to two decimal places. Do not round your intermediate calculations.

Assets Liabilities And Equity Cash 120 Accounts payable and $ 10 accruals Accounts receivable 240 Short-term debt 42 Inventories 360 Long-term debt $1,140 Plant and equipment, net 2,160 Common equity 1,688 Total assets $2,880 Total liabilities and equity $2,880