Answer:
0-3
Step-by-step explanation:
From what I undersand when you subtract the two they have to equal negitive three
2+1/3n=8 is the answer, I believe.
y= 1.25x+6.75
Make 31.75 y because that is the total cost he paid.
1.25x+6.75=31.75
1.25x=25
x=20
So he had 20 refills.