C. −6, is the best option
Answer:
i worked out the equation provided and all i get is (y = -2.5)
Step-by-step explanation:
First we need the distances of the sides of the polygon, because perimeter = sum of all sides.






Now, we add all sides for the perimeter:
p = d1 + d2 + d3 + d4 + d5
p = 3+5+5+3+4 = 20 units