Need a Venn diagram:

At the mall, 150 customers were asked what type of pet they owned. 51 people in the gorup had a dog, 48 people had a cat and 29 people had both a dog and a cat.

How many of these people had only a dog_____; How many of these people did not have a cat _____; How many of these people had neither a dog nor a cat____; How many of these people had a cat or a dog ___?