Answer:
(B) 60 degrees
Explanation:
You want the measure of angle A = x+2, given that it forms a linear pair with angle B = 2x+4.
Linear Pair
The sum of angles in a linear pair is 180°
A +B = 180
(x +2) +(2x +4) = 180 . . . . use the given expressions
3x +6 = 180 . . . . . . . . . simplify
x +2 = 60 . . . . . . . . . divide by 3. Angle A = x+2 = 60
The measure of angle A is 60 degrees.