Explain answers fully

investors generally require a higher rate of return for equity claims, relative to debt claims. ake clear the differences between debt and equity in your answer and how those differences help to drive investors to require higher returns for equity relative to debt.?

What is the relevant measure of a stocks risk? In your answer be sure to explain systematic risk and unsystematic risk.?

What does the CAPM equation tell us about what drives the differences in expected returns required by stockholders for different stocks.?