Maria Gonzalez, Ganado's Chief Financial Officer, estimates the risk-free rate to be 3.60% , the company's credit risk premium is 4.10%, the domestic beta is estimated at 1.19, the international beta is estimated at 0.97 , and the company's capital structure is now 30% debt. The expected rate of return on the market portfolio held by a well-diversified domestic investor is 9.50% and the expected return on a larger globally integrated equity market portfolio is 8.40% . The before-tax cost of debt estimated by observing the current yield on Ganado's outstanding bonds combined with bank debt is 7.9% and the company's effective tax rate is 38%. For both the domestic CAPM and ICAPM, calculate the following:

a. Ganado's cost of equity

b. Ganado's after-tax cost of debt

c. Ganado's weighted average cost of capital