Respuesta :
Answer: C. [tex]120\ ft^3[/tex]
Step-by-step explanation:
The given dimensions of pool :-
Length (l)= 5 ft.
Width (w)= 4 ft.
Height (h)= 2 ft.
The volume of rectangular prism is given by :-
[tex]\text{V}=lwh[/tex]
Then, the volume of swimming pool is given by :_
[tex]\text{V}=5\times4\times2=40\ ft^3[/tex]
Since, during summer, the child’s pool needed to be filled 3 times.
Therefore, The amount of water were needed to fill the pool during the summer =[tex]3\times40=120\ ft^3[/tex]