Answer:
the answer is figure C
Step-by-step explanation:
You are only showing one pair of triangles
Perimeter = (2x -3y) + (x² + 7) + (2x + y)
Perimeter = 2x -3y + x² + 7 + 2x + y
Perimeter = x² + 4x - 2y + 7
------------------------------------
Answer: x² + 4x - 2y + 7
------------------------------------