Can someone please help me with this problem ? Very much apperciated im a foriegn exhcnage studant and i need help in excel

Problem 4 Skye Inc's the common stock sells for $55, last year's dividend was $2.10. Security analysts are projecting that the common dividend will grow at a rate of g% per year. The firm can issue long-term debt at an interest rate(or before-tax cost) of 10%, and its marginal tax rate is 35%. The expected return on market is 11%, the risk-free rate is 6%, and Skye's beta is 1.516. Skye has 30% debt, and 70% equity in the capital structure a) Calculate the cost of each capital component, that is, the after-tax cost of debt, and the cost of equity. b) If Skye continues to use the same capital structure, what is the firm's WACC