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There are 80 students. 30 students favorite pizza is pepperoni. 20 students favorite place to eat pizza is Slackwater. 15 students favorite pizza is pepperoni at Slackwater. Define "favorite pizza is pepperoni" as Event A Define "favorite pizzeria is Slackwater" as Event B Calculate P (A U B). Remember probabilities should be between O and 1. (Round your answer to two decimal places, e.g. 0.57)