Answer:A
Step-by-step explanation:
first you use the lmnp and pqno to get our full answer
I don’t kno how to estimate using benchmarks but I kno the exacts answer is 13/10 or 1.3
X=32 because both equations are equal to 180 degrees (3x+22°+x+30°=180) just solve that equation and you’ll get your answer
-x + 1/2 = x + 4 1/2
+x +x
1/2 = 2x + 4 1/2
-4 1/2 - 4 1/2
-4 = 2x
x = -2