Answer:
This is part of a wider question with less details.
1.
The volume is the function of three dimensions.
The model has each dimension 6 times smaller.
The volume of the model will be:
2.
Using the above information we can say that:
- the volume of the actual tank is 216 times greater which is equivalent of 21500%.
3.
No info is given regarding the shape of the tank, so can't answer this.