I am not really good at tables and I need some help. Please if someone can explain to me :,)

Answer 2
Step-by-step explanation:
it 2 every time it goes down by 3
the amount of gas left goes down by 3
and like .4 but 2 would be left in the tank
Answer:
Honestly i would say that it is "4"
I got some advice from the other guy who answered and i actually did the math with my numberline