19. What is the firm's after-tax cost of equity financing if we use the discounted cash flow approach (Gordon Growth model)? 16.85% b) 16.10%** c) 15.50% 12.88% e) 25.40% 19. What is the firm's after-tax cost of equity financing if we use the discounted cash flow approach (Gordon Growth model)? 16.85% b) 16.10%** c) 15.50% 12.88% e) 25.40%