A company facing a tax rate of 40% has an equity beta of 1.35. The riskless rate is 5% and the expected return on the market is 12%. What is the after tax cost of this capital? Express your answer without a percent sign (12.345% = 12.345).

A company facing a tax rate of 25% has issued a zero-coupon bond with a 55000 face value, and a maturity of 6 years. The bond is priced at 40000. What is the after tax cost of this capital? Express your answer without a percent sign (12.345% = 12.345).

A company facing a tax rate of 45% has an equity beta of 1.80. The riskless rate is 3% and the expected return on the market is 14%. What is the after tax cost of this capital? Express your answer without a percent sign (12.345% = 12.345).



I'm not really looking for the answer, just how to solve a problem similar to this.