I think you set up the equation like this
$2.50x+5
I hope I helped sorry if I didn't.
ok i think your answer will be from least to greatest it would be this 3 1/5, 3.1, 3.5, 4.2
Hope i helped let me know if i got it right if not i am very sorry.
Answer:
The three-dimensional surface represented by the equation x+y=2 is an inclined plane, as seen in the image.