Question 7 (1 point) All other things held constant, the higher the firm's tax rate, the lower the firm's after-tax cost of debt, which decreases the firm's WACC. True False Question 8 (1 point) When investing, individuals should focus on finding an investment with the highest effective rate rather than the highest nominal rate. True False Question 9 (1 point) According to the Capital Asset Pricing Model, investors are primarily concerned with the systematic risk, and not the unsystematic risks of the individual stocks. True False