PLEASE HELP! - FIND THE VALUE OF X! - PLEASE PLEASE PLEASE SHOW YOUR WORK I WILL MARK YOUR BRAINLIST!! MY TEACHER IS REALLY STRICT ABOUT SHOWING WORK. YOU WILL GET 20 POINTS! :)

Answer:
1. 50°
2.135
3.20°
4.45°
Step-by-step explanation:
1. A right angle adds up to 90 degrees adding that with 40 degrees you get 130. When you subtract the with 180 because a triangle add up to 180 you get 50°. 90+40=130 180-130=50 (might be better in column method.)
2.Add both 20 and 25 to get 45 and subtract your answer with 180 because triangles add up to 180. 20+25=45 180-45=135(might be better in column method)
3.Add 130 and 30 to get 160. Subtract 180 by your answer and get 20.
130+30=160 180-160=20(might be better in column method)
4. Add 95+40 and subtract your answer by 180. 180 subtracted by 135 is 45.
95+40=135 180-135=45(might be better in column method)