I believe the answer is C. other students in his class are from mexico. Hope this helps!!
3x - y = 5
If you are looking for x, then
3x - y(0) = 5
3x = 5
x = 5/3
If you are looking for y,
3x - y = 5
3(0) - y = 5
-y = 5
-y / -1 , 5 / -1
y = -5
C. Economics
Hope it helps
