What is the value of y?

from looking at this we can tell where z represents the other side of b

z+2x+18=180

z+2x=162

so we can see this way of doing the problem is unsolvable now we have to try elimination

16+4x-14=180

4x+2=180

4x=178

x=44.5

now to check this we have to put it on the top where it represents z

44.5+2x+18=180

62.5+2x=180

x=117.5

so that means the angle  would be

2*117.5+18

253 which is a obtuse angle and the angle is not so A is not the answer

a .4y4

hope this !