Answer:
Explanation:
If the art teacher poured 1 gallon of paint into each container until he ran out of paint, then the number of containers he filled will depend on the size of the containers. We can calculate the number of containers by dividing the total amount of paint by the amount of paint in each container. Since the teacher poured 1 gallon of paint into each container, the number of containers he filled will be equal to the total amount of paint.
Therefore, the answer is A. 1 container had paint in it, including the one that was partially filled.