Angles on straight line = 180 
110 + 5x = 180 degrees 
-110
 5x. = 70
 ÷ 5
 x. = 14
5 x 14 = 70
Angles in triangle = 180
70 + 40 = 110
So, the missing angle inside the triangle is 70
Now to find y, use angles on straight line = 180
2y + 70 = 180
 - 70
2y = 110
÷2
y = 55 degrees 
Hope this helps!