True or false o 0 15. The after-tax cost of debt > Rd O 0 O Q Q 16. Retained earnings is included in the weight of equity. 17. When solving for the weights for privately held firms, book values are more commonly used. 18. Other things equal, the greater the WACC, the lower the NPV will be. 19. If 1000 shares of stock sell for $20 per share and 50 bonds sell for $800 each, their combined market value