Explain the concept of a firm's weighted average cost of capital (WACC).

2. Calculate St. Louis Chemical's WACC using 30% debt and 70% equitycapitalstructure.
4. Recalculate St. Louis Chemical's WACC (round to the nearest whole number) using a40% debt and60% equity capitalstructure.
6. Explain the difference between your answerto questions 2 and 3.
8. What arguments should be made to convince the Williams of the advantage ofusinglong-term debt in the firm's capital structure? What are the disadvantages?
10. Explain why an accurate WACC is important to a firm's long-term success.

The cost of equity is 14%, the cost of debt is 10%and the tax rate is 35 %.