Final answer:
When the number of layers is doubled, the volume doubles as well. Similarly, if there are 4 layers, the volume will be quadruple the volume of 1 layer.
Step-by-step explanation:
When the number of layers is doubled, the volume doubles as well.
This is because volume is directly proportional to the number of layers.
So if there are 2 layers, the volume will be double the volume of 1 layer.
Similarly, if there are 4 layers, the volume will be quadruple the volume of 1 layer.