Respuesta :

one angle is marked as 124 degrees.

 The opposite angle would also be 124

 so now you have 124 + 124 = 248 degrees

 total interior angles = 360

360 - 248 = 112 degrees left

so z & y = 112/2 = 56 degrees

y = 56/2 = 28 degrees



please mark brainliest.