Answer:
The height of the tank is 20 inches.
Explanation:
The fish tank is a parallelepiped wich volume equals to the product of it's three dimensions, the width, length and height. So the formula to the volume is:
V = width*length*height
In this problem we know the volume, the width and the length and we want to know the height, so we can isolate the variable we want to know, such as:
height = V/(width*length) = 3360/(14*12) = 3360/168 = 20 inches
The height of the tank is 20 inches.