Manipulating CAPM Use the basic equation for the capital asset pricing model (CAPM) to work each of the following problems. a. Find the required return for an asset with a beta of 1.89 when the risk-free rate and market return are 5% and 13%, respectively. b. Find the risk-free rate for a firm with a required return of 8.679% and a beta of 0.87 when the market return is 9%. c. Find the market return for an asset with a required return of 17.145% and a beta of 1.61 when the risk-free rate is 8%. d. Find the beta for an asset with a required return of 6.414% when the risk-free rate and market return are 4% and 7.4%, respectively