Answer :
27; The first stack is 3 x 3 (= 9). You then multiply 9 by 3 (for each of the 3 stacks). Basically, 3 x 3 x 3.
Your finding the volume.
When you find volume it's L×W×H
so it's 3×3×3=27
Answer: 27
When you find volume it's L×W×H
so it's 3×3×3=27
Answer: 27
