Answer: The answer is: " $3.00 " .
_______________________________
→ that is: " $3.00 per gallon of gas " .
________________________________
Step-by-step explanation:
____________________
Let's assume you meant to write: "The amount of money spent at that gas station..." [in the first sentence of this very Brainly question being asked.].
This is a "unit rate problem":
Given $36 per 12 gallons;
How many dollars per 1 (one gallon)?
To solve: "(36 ÷12)" dollars per gallon ;
which equals "3 dollars per gallon" .
_________________________
Or; write as $3.00 per gallon.
_________________________
The correct answer is: " $3.00 " .
_________________________
Hope this helps!
Best wishes to you in your academic endeavors—and within the "Brainly" community!
__________________________________________