The expected return on the S&P 500 is 9% and the risk-free rate is 3%. What is the expected return on the investment with a beta of 0.72 5.0% 6.8% 7.2% 9.0% A company enters into a short futures contract to sell 50,000 units of a commodity for 45 cents per unit. The initial margin is $2,000 and the maintenance margin is $1,500. What is the futures price per unit above which there will be a margin call? 46 cents 42 cents 43 cents 50 cents