In a class of students, the following data table summarizes how many students have a ent or a dog. What is the probability that a student who has a dog also has a cat?
Has a cat Does not have a cat
Has a dog
5
Does not have a dog
4
18

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge