How do I do this problem?

1.      What is the cost (% required rate of return) of the preferred stock? ______________________________________________________ Chapter 7

2.      What is the cost (% required rate of return) of the common stock? _______________________________________________________Chapter 7

3.      What is the cost (% yield to maturity) of the bonds? _______________________________________________________Chapter 6

4.      What is the firm’s WACC? ________________________________Chapter 13

5.      What is the firm’s OCF ___________________________________Chapter 9

6.      What is the NPV, using the WACC (answer from question 6), and OCF (answer to question 7)? __­­­­__________Chapter 8