Answer:
1st question answer is owning a dog or owning a cat
the second question answer is 7
Explanation:
1)mutually exclusive means 2 things that cannot happen at the same times. so its asking which is NOT an example so u can own a dog and a cat at the same time
2)the answer is 7 because 11 ppl buy contact lenses and 4 people buy glasses. 11-4=7