SOLVE A,B,C, and D

Cost of equity: SML. Stan is expanding his business and will sell common stock for the needed funds. If the current risk-free rate is 4.8% and the expected market return is 11.9%, what is the cost of equity for Stan if the beta of the stock is a. 0.61 ? b. 0.86 ? c. 1.04 ? d. 1.27