unida system has 47 million shares outstanding trading at $12

EUnida Systems has 46 million shares outstanding trading for $8 per share In addition, Unida has $85 million in outstanding debt. Suppose Unida's equity cost of capital is 17% fts debt cost of capital is 7%, and the corporate tax rate is 35% a. What is Unida's unlevered cost of capital? b. What is Unidas after-tax debt cost of capital? c. What is Unida's weighted average cost of capital