Use a circle diagram to solve each problem. See Example 7. PETS When asked about their...

Use a circle diagram to solve each problem. See Example 7.

PETS When asked about their pets, a group of 35sixth-graders responded as follows:

• 21 said they had at least one dog.

• 11 said they had at least one cat.

• 5 said they had at least one dog and at least one cat.

How many of the students do not have a dog or a cat?

Reference Example 7