Question 10 (Mandatory) (1 point) Listen Cartels are legal in the United States. True OFalse Question 11 (Mandatory) (1 point) Listen Toby operates a small deli downtown in a monopolistically competitive restaurant industry. In long-run equilibrium, the profit-maximizing price of the three-meat sandwich is $9. Price also equals his average total cost. Toby's minimum average total cost is less than $9. True OFalse Question 12 (Mandatory) (1 point) Listen Perfect competition is the only market structure in which firms are economically efficient in long-run equilibrium. O True False