What is angle ABE?
Angle ABE = 80 degrees.
Because triangle ABC is isosceles, angle ABC = angle ACB = (180 - 30)/2 = 75°
Angles on a straight line must sum to 180°, so 4x + 2x + 75 = 180 giving x = 17.5°, which makes angle ABE = 35°. This doesn't match any of your options!
