Answer:
x=15, y=12
Step-by-step explanation:
Please see the attached pictures for full solution.
Step-by-step explanation:

28=5x+18? do you need to know how long it takes to fill up the the gallon or just the equation? that’s the equation tho.
Can you take a picture of the question so I can solve it
570-245 = 325
325 / 5 = 65
she keep adding 65 dollars to her acc every week