Will give brainliest

if < 1 and < 2 form a linear pair, m< 1 = 100 + 20x, and m< 2 = 20x, find
m< 1 .

a.
2°
b.
40°
c.
140°
d.
180°

A linear pair means the two angles add up to equal 180 degrees
so
m<1 + m<2 = 180
 100 + 20x + 20x = 180
40x = 80
x = 2

m<1 = 100 + 20x  = 100 + 20(2) = 140

answer
c.
140°