The best answer to go with is b
Answer:
The first one. Top left.
Step-by-step explanation:
The top right one makes a triangular prism.
I don't even know if the bottom right is even a thing.
The bottom left is a cube.
Answer:
2160 water can fit in the fish tank(if this is a question about how much water can fit in this tank)
Step-by-step explanation:
40 x 18 x 3 = 2160