e. 12.82% 4. U KNO, Inc. uses only debt and common equity funds to finance its assets. This past year the firm's return on total assets was 19%. The firm financed 30% percent of its assets using debt. What was the firm's return on common equity? a. 24.36% b. 63.33% C. 47.26% d. 69.50% 27.14%