How do I do this problem?

How do I do this problem?. 1.ÿÿÿÿÿ What is the cost (% required rate of return) of the preferred stock? ______________________________________________________ Chapter 72.ÿÿÿÿÿ What is the cost (% required rate of return) of the common stock? _______________________________________________________Chapter 73.ÿÿÿÿÿ What is the cost (% yield to maturity) of the bonds? _______________________________________________________Chapter 64.ÿÿÿÿÿ What is the firm?s WACC? ________________________________Chapter 135.ÿÿÿÿÿ What is the firm?s OCF ___________________________________Chapter 96.ÿÿÿÿÿ What is the NPV, using the WACC (answer from question 6), and OCF (answer to question 7)? __????__________Chapter 8

How do I do this problem?