Mitchell Manufacturing is considering the following capital projects. The internal rate of return (IRR) has been calculated for each project. The optimal capital budget (OCB) is the budget size that maximizes the firm's wealth given the opportunities for investment and the cost Mitchell's managers have plotted the marginal cost of capital (MCC) schedule to reflect how the cost of capital increases as new capital is Assume that the proposed projects are independent and equally risky and that their risks are equal to Mitchell's average existing assets. Refer to the preceding graph, and place the black point (X symbol) at the point that represents the OCB to find the answer. What is the optimal capital budget? What is the weighted average cost of capital (WACC) at the optimal capital budget