Titan Mining Corporation has 9.3 million shares of common stock outstanding, 370,000 shares of 6 percent preferred stock outstanding, and 195,000 8.1 percent semiannual bonds outstanding, par value $1,000 each. The common stock currently sells for $41 per share and has a beta of 1.15, the preferred stock currently sells for $91 per share, and the bonds have 20 years to maturity and sell for 112 percent of par. The market risk premium is 8.1 percent, T-bills are yielding 4 percent, and Titan Mining's tax rate is 40 percent.

a) What is the firm's market value capital structure?
Debt
Preferred stock
Equity

b) If Titan Mining is evaluating a new investment project that has the same risk as the firm's typical project, what rate should the firm use to discount the project's cash flows?