Consider this case: the firm increase its debt ratio to 50%. The current risk-free rate is 3.5%, the market risk premium is 7.5%, and Globex Corp.'s beta is 1.10 If the firm's tax rate is 25%, what will be the beta of an all-equity firm if its operations were exactly the same? Now consider the case of another company: US Robotics Inc. has a current capital structure of 30% debt and 70% equity. Its current before-tax cost of debt is 6%, and its tax rate Inc. is considering changing its capital structure to 60% debt and 40% equity. Increasing the firm's level of debt will cause its before-tax cost of debt to increase to 8%. First, solve for US Robotics Inc.'s unlevered beta. Use US Robotics Inc.'s unlevered beta to solve for the firm's levered beta with the new capital structure. Use US Robotics Inc.'s levered beta under the new capital structure, to solve for its cost of equity under the new capital structure. What will the firm's weighted average cost of capital (WACC) be if it makes this change in its capital structure? 10.30%6.70%8.76%8.24%