Answer:
145°
Step-by-step explanation:
Since the line intersecting the parallel lines will be perpendicular, x+x will be 90. Therefore, x is 45°. In that triangle, we add 45 and 100 to get 145. All triangle measures add to 180, so we do 180-145 to get 35, which is the last angle in that triangle. Now, since those lines are parallel, 35 and y will add to equal 180. 180-35 is 145°
