20 times 5 is 100. We can multiply 2*5 and get 10, then add another zero to make it easier.
For

Combine the fractions



Therefore our final answer is

Hope this helps!
Answer:
280 gallons
Step-by-step explanation: The pool is being drained by gallons so what I did was subrtacted the gallons that are drained in 9 minutes and 2 minutes. :D ✨
All of them are the correct answer.