31. Ebooks According to a survey, 56% of school (K-12) libraries in the United States do not carry ebooks. Of these 56%, 8% do not plan to carry ebooks in the future. Find the probability that a randomly selected school library does not carry ebooks and does not plan to carry ebooks in the future. (Source: School Library Journal) 32. Surviving Surgery A doctor gives a patient a 60% chance of surviving bypass surgery after a heart attack. If the patient survives the surgery, then the patient has a 50% chance that the heart damage will heal. Find the probability that the patient survives surgery and the heart damage heals.