Firms HL and UL are identical except for their financial leverage ratios and the interest rates they pay on debt, Each has $12 million in invested capital, has $1.8 million of EBrT, and is in the 25\% federal-plus-state tax bracket. Firm HL, however, has a debt-to-capital ratio of 60% and pays 13% interest on its debt, whereas LL has a 30% debt-to-capital rato and pays only 10% interest on its debt. Neither firm uses preferred stock in its capital structure. a. Calculate the return on invested capital (ROIC) for eoch firm. Round your answers to two decimal places. ROIC for firm LL: ROIC for firm HL: b. Calculate the rate of return on equity (ROE) for each Nirm. Round your answers to two decimal places. ROE for firm LL ROE for firm HL: c. Observing that HL has a higher ROE, LL's treasurer is thinking of raising the debt-to-capital ratio from 30% to 60% even though that would increase LL's interest rate an all debt to 15\%. Calculate the new ROE for LL. Round your answer to two decimal places