131.818182% and can round to 131.82
Since you know the given angle is 46deg. You also know that a straight line is equal to 180deg. So it's a supplementary angle, therefore you subtract 46 from 180 and get 134. And since the l, m, and n are parallel, they have congruent angles. So x = 134deg.
In a direct proportion, the equation can be set up as
y = kx
k = y/x
k = 6/20
k = 0.3
Answer:
A, C, and D have been simplified correctly