Gates Appliances has a return-on-assets (investment) ratio of 15 percent. a. If the debt-to-total-assets ratio is 30 percent, what is the return on equity? (Input your answer as a percent rounded to 2 decimal places.) Return on equity b. If the firm had no debt, what would the return-on-equity ratio be? (Input your answer as a percent rounded to 2 decimal places.) Return on equity