Answer and Explanation:
1. Asset beta measures company's risk or volatility of return in assets without the effect of leverage financing or debt.
Asset beta= Equity beta / 1+(1-tax rate) *debt / equity
2. Unlevered cost of equity measures the returns on assets without the effect of debt
Unlevered cost of equity = Risk free return + Asset Beta * (Expected market return - Risk free return)
3. Equity beta measures security prices' volatility to change in the market
4. Weighted average cost of capital is the weighted average cost or average cost of all capital sources employed by the company in financing it's assets
Weighted Average cost of capital = Cost of Equity * proportion of equity + Cost of debt after tax rate * proportion of debt
Expected return in CAPM= Risk free return +asset beta *market return -risk free return