Answer should be C! Have a great day!
If we want to calculate the time it takes to fill a water tank, we need the flow and volume of the tank.
The flow must be a data, but for the volume of the tank we need mathematics.
For example, if it is a cylinder, we need mathematics to know that the volume of the cylinder is:
V = pi * r ^ 2 * h
You multiply 8.5 by 5.25 by 4 and get 178.5
Here you go, The answer is 8.75
