Question

Can someone please help? Medal will be given?

Answer 1

well x= 90
to start with, y=30 (suplementary angles), then because of the sum of the angles on a triangle must be 180, i guess the last one is correct

Answer 2

Look at 150 degree angle at right. That angle plus y = 180, so y = 180 - 150 = 30

Answer 3

The sum of the measures of the angles of a triangle is 180, so
x + y + 60 = 180, but y = 30, so
x + 30 + 60 = 180
Solve for x

Answer 4

y = 30
x = 90