Answer:
C. 71°
Step-by-step explanation:
If angles 4 and 12 are equal and complementary, then they measure 45°
There is a triangle formed by angles 3, 11 and 12
the angle 3 = 64°, angle 12 = 45°
Then by the property of triangles:angle 11 = (180 - 64 - 45)° = 71°
Hope this helps
I think its 71, but I am not 100% sure. Take this as a secondary answer.
x = 5
18x-30-7x = 25
11x = 55
x = 55/11
x=5
I guess this is the answer
