So if QR and PQ are the same ( which they are bc the angles and other sides are the same) 3n-1= 5n-7 so -1= 2n -7 so 6 = 2n so n = 3 then QR is 5n -7 so 5 x 3 is 15-7 is 8 so the answer is 8. Hope this helps :)
Answer:
x = 4
Step-by-step explanation:
42°
Step-by-step explanation:

(Angles in linear pair)



(Angle sum postulate of a triangle)



(corresponding angles)

(vertical angles)


Answer:
C
Step-by-step explanation:
slope = rise /run
from point (2, 0) to point (-2, 2) you rise 2 and run -4 so m= 2/-4 = -1/2