Hannah has
liters of oil left in the bottle.
Step-by-step explanation:
Given,
Quantity of oil in bottle = 4 liters
Quantity used by Hannah = 
We will subtract the quantity used from the total quantity.
Oil left = Total oil - Oil used

Taking LCM

Hannah has
liters of oil left in the bottle.
Keywords: fraction, subtraction
Learn more about fractions at:
#LearnwithBrainly
(Kevin) y= k-6 - k minus six
(Melanie) y= 2(k-6) - two times k minus six
K, only got that far... sorry
Answer:
it depends on how many he can clean in a single hour.
if he cleans 2/5 pools thats 10 pools in 25 hours
Step-by-step explanation:
if he cleans one pool per hour, thats 25 pools in 25 hours. if he can clean 4 pools an hour, thats 100 pools in 25 hours.