9 quarts are less than 9 gallons.
3 gallons and 13 quarts is greater than one tiny drop.
3 gallons is greater than 10 quarts
12 gallons is equal to 48 quarts, so it is less than 50 quarts.
It is greater than
Twelve gallons is less than fifty quarts because there are four quarts in one gallon.
5 gallons is neither greater nor less than 20 quarts. They are equal volumes.