Answer:
x = 20
F = 46
Explanation:
For x :
( 20 ) * 2 = 40
40 + 3 = 43
For degrees F
Add triangles have a angle sum of 180
So you just subtract 180 by the angles in the triangle
180 - 91 = 89
89 - 43 = 46
46 is remaining so it is the missing degrees ( F )