Answer:
27 units
Step-by-step explanation:
You can do this 2 ways:
Volume is l x w x h so 3 x 3 x 3 = 27
You can also count each cube that makes up the whole cube. The top layer has 9 cubes. The middle layer has 9 cubes. The bottom layer has 9 cubes. 9 + 9 + 9 = 27
