PLZ HELP EM ASAP PLSSSZZZ

Answer:
You will need 800 [tex]ft^{3}[/tex] of water to fill the pool.
Step-by-step explanation:
The amount of cubic that we need is equal to the volume of the pool therefore we just have to find the volume of the pool by using the following formula...
Volume = (Length)(Width)(Height/Depth) = (20)(10)(4) = 800
Therefore you will need 800 [tex]ft^{3}[/tex] of water to fill the pool.