Rogot Instruments makes fine violins, violas, and cellos. It has $1 million in debt outstanding, equity valued

Question:

Rogot Instruments makes fine violins, violas, and cellos. It has $1 million in debt outstanding, equity valued at $2 million, and pays corporate income tax at a rate of 35%. Its is 12% and its is 7%.
a. What is Rogot’s pretax WACC?
b. What is Rogot’s (effective after-tax) WACC?

Cost Of Debt
The cost of debt is the effective interest rate a company pays on its debts. It’s the cost of debt, such as bonds and loans, among others. The cost of debt often refers to before-tax cost of debt, which is the company's cost of debt before taking... Cost Of Equity
The cost of equity is the return a company requires to decide if an investment meets capital return requirements. Firms often use it as a capital budgeting threshold for the required rate of return. A firm's cost of equity represents the...