The answer It’s 5 hope this helps !!
Answer:
y=-1/3x+5
Step-by-step explanation:
6=-1/3(-3)+5
6=1+5
6=6
1 cubic foot has 7.48 gallons of water.
Volume of water tank = 234 cubic feet
So, the number of gallons are = 
Hence, the water tank can hold 1750.32 gallons of water.
I think division, at least that's how I wrote it in school