Trisha has put boxes together for an art project. What is the combined volume of the boxes?

Two boxes, labeled A and B are shown. Box A has a length of 12 cm, width of 3 cm, and height of 5 cm. Box B is placed on top of Box A with length of 3 cm, width of 3 cm, and height of 3 cm.

The volume of Box A is:

12 cm x 3 cm x 5 cm = 180 cm³

The volume of Box B is:

3 cm x 3 cm x 3 cm = 27 cm³

To find the combined volume, we just need to add the volumes of the two boxes:

180 cm³ + 27 cm³ = 207 cm³

Therefore, the combined volume of the two boxes is 207 cubic centimeters.