I believe it is the commutative property, hope this helps!
First, you need to get to one gallon, which is 37.20 divided by 12. (3.1)
Divide that number by four, which is: 0.775, or 0.78 rounded up to the nearest hundredth.
Hope that helped.
Can you translate to english?
I hope this helps you
6×(9-c)
c=3
6×(9-3)
6×6
36
--------------------------
