Forty-five people were polled about their preferences for pizza, tacos, and salad. Sixteen people stated that they liked pizza, 19 people stated that they liked tacos, and 22 people stated that they liked salad. Eight people stated that they liked both pizza and tacos, 7 people stated that they liked both tacos and salad, and 9 people stated that they liked both pizza and salad. If 39 people preferred at least one of the foods, and the number of people who stated that they liked all three equals the number of people who stated that they don’t like any of the foods, how many of the 45 people stated that they liked only one of the foods?