Hi there!
Answer:
If the pool is only 80% full, its volume would be 20,000L³.
Explanation:
In order to answer your question, you'll need to find what 80% of 25,00L³ is equal to.
"80%" is the same thing as 80 ÷ 100, which is equal to : 0.8
The word "of" is the same thing as a multiplication sign.
SO, 80% of 25,000 = 0.8 × 25,000
0.8 × 25,000 = 20,000
There you go! I really hope this helped, if there's anything just let me know! :)