Suppose that a firm’s capital is composed of [x]% common equ…

Suppose that a firm’s capital is composed of [x]% common equity and [100-e]% debt; no preferred stock is used. In addition, the before-tax cost of the debt is [b]%, the cost of the equity is [s]%, and the firm’s marginal tax rate is [T]%. The firm’s weighted average cost of capital is? (Express as a percent with two decimal places, without the % sign, e.g., (12.41).