Ezekiel was having a pizza party, so he bought 7 pizzas, each with 8 slices. Unfortunately, word of his party got out, and the party got out of control. Now, Ezekiel is trying to figure out how many people showed up. If he assumes that on average each person ate 3 1/2 slices, and if all the pizza was eaten, how many people would Ezekiel guess showed up?