Unida Systems has 32 million shares outstanding trading for $10 per share. In addition, Unida has $96 million in outstanding debt. Suppose Unida's equity cost of capital is 15%, its debt cost of capital is 8%, and the corporate tax rate is 34%.

a. What is Unida's unlevered cost of capital? (Round to one decimal place.)

b. What is Unida's after-tax debt cost of capital?

c. What is Unida's weighted average cost of capital?