You use the extra info and end up getting the wrong answer
Sum of all interior angles = (n-2)x180, n being the number of sides.
sum of all interior angles = (n-2)x180
sum of all interior angles = (14-2)x180
sum of all interior angles = 12 x180
sum of all interior angles = 2160°
Use the quadratic formula to get x = (3 - 2*sqrt(6))/3 or x = (3 + 2*sqrt(6))/3
D. A sparrow has made a nest in the fern on the porch.
Answer:
The answer would be, D. y=-2x-1
Step-by-step explanation: