Answer:
The family would need to take 3 cars.
Step-by-step explanation:
To solve this is easy. Simply find out how many groups of four can fit into eleven. Or, to put it another way, divide eleven by four. One way I would do ones like this is I would make boxes for the cars, then put four dots in each car to represent the people. I would keep putting in dots until I had eleven dots total. But basically the answer is 3. They would need to take three cars.
