Someone please help me with this it’s due today I have to write a statement of how I determined the answer for number 1 too please y’all

Answer:
The Answer Is A.
How I Found The Answer:
4 - 1 = 3
X Comes Before Y In Pairs.
Answer:
wouldn't it be A?
Step-by-step explanation:
3+1=4
3x+1y=4