Please explain the weighted average cost of capital equation. How you would estimate the various components, what do they reflect? When would a firm use RWACC?

Suppose a firm is considering a project where the riskiness of the cash flows is greater than the riskiness of the cash flows of the overall firm. How should the firm proceed in evaluating the project? Should they use the overall firm weighted average cost of capital? If not, why not?

The US Treasury Yield Curve recently inverted.Using the expectations theory of the term structure of interest rates, what might the inversion signal about investors expectations of future short-term interest rates relative to short term rates? Use the two period expectations theory of the term structure of interest rates use numbers to explain or formulas.