hi can you please answer typed and fully explained with formulas because its 25 marks

Question 2: (25 marks) The YYY and Zzz Company are two firms whose business risk are the same but that have different dividend policies. YYY pays no dividend, whereas ZZZ has an expected dividend yield of 4%. Suppose the capital gains tax rate is zero, whereas the income tax rate is 35%. YYY has an expected earnings growth rate of 15% annually, and its stock price is expected to grow at this same rate. If the after-tax expected returns on the two stocks are equal, what is the pre-tax required return on ZZZ stock? Question 3: (50 marks)