Answer:

Step-by-step explanation:
Multiply by 2:
2n = Z(A - m)
Divide by Z:
Subtract A:

Multiply by -1:

Answer:
70 degrees
Step-by-step explanation:
The angle opposite x and x itself are vertical angles, meaning that they have the same angle measure. Since the sum of the interior angles of a triangle is 180 degrees:
x+55+55=180
x+110=180
x=180-110=70
Hope this helps!
Answer:
that looks like it should be C
Step-by-step explanation: