I need help solving the attached corporate finance word problem, please

Ganado's Cost of Capital. Maria Gonzalez Ganado's Chief Financial Officer, estimates the risk-free rate to be 3 10%, the company's credit risk premium is 3 60%, the domestic beta is estimated at 0.91, the international bela is estimated at 0.57 and the company's capital structure is now 65% debt. The expected rate of return on the market portfolio held by a well-diversified domestic investor is 9.80% and the expected return on a larger globally integrated equity market portfolio is 8 80% The before-lax cost of debt estimated by observing the current yield on Ganado's outstanding bonds combined with bank debt is 7 70% and the company's effective tax rate is 39% 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