a growing chain is trying to decide which store location to open. the first location (a) requires a $500,000 investment in average assets and is expected to yield annual income of $80,000. the second location (b) requires a $200,000 investment in average assets and is expected to yield annual income of $40,000. (1) compute the expected return on investment for each location. (2) using return on investment, which location (a or b) should the company open?