Y = 37. angle O is 16 since it is corresponding to the opposite 16. It is splitting a 90 angle, so 90 - 16 = 74. 74 divided by 2 (because it is 2y) = 37. X = 18.5. Line AB is a straight line which equals 180 degrees, so you subtract what you know from 180 which is the 90 degree angle and additional 16 degree leaves you with 74 degrees. then, because it is 4x, you divide 74 by 4 and that results in x being 18.5. hope this helps!!
