Assume that a local restaurant sells two items, salads and steaks. The restaurant's only two customers on a particular day are Mr. Carnivore and Ms. Leafy Greens. Mr. Carnivore is willing to pay $20 for a steak and $7 for a salad. Ms. Leafy Greens is willing to pay only $8 for a steak, but is willing to pay $12 for a salad. Assume that the restaurant can provide each of these items at zero marginal cost. Refer to Scenario 17-1 . If the restaurant is unable to use tying, what is the profit-maximizing price to charge for a steak