Line j is a straight line.

Line j is a straight line. 2 lines come out of the line to form 4 angles. From top left, clockwise, the angles are: x, y, z, w.

Which equation represents the relationship between the measures of Angle w and Angle z?
Measure of angle w = measure of angle z
Measure of angle w + measure of angle z = 90 degrees
Measure of angle w + measure of angle z = 100 degrees
Measure of angle w + measure of angle z = 180 degrees