question 1 and 2

Math 1100 Finite Math, Written Homework 2 Problem 1 Among a large group of patients recovering from physical injuries, it is found that 62% visit a chiropractor, 48% visit a physical therapist, and 12% visits neither of these. What percentage of patients visit both? Problem 2 Suppose two dice are rolled. 1. Find the probability that the second die is 4 or the sum of the dice is 7. 2. Find the probability of a sum of 6 given that the roll is a double