Answer:
75
Step-by-step explanation:
x= 75
been that the line is perpendicular (the two lines that intersect in such a way that they have a right angle, or a 90 degree angle, between them)
I'm pretty sure its 4
Hope this helps, happy learning!!!
using angle sum property
we get
110+35+(x+12)=180
(x+12)=180-145
(x+12)= 35
x= 35-12
x= 23
