Angle WYV is across from SYT, and SYT is 64, since the lines intersect, it becomes clear that WYV is also, 64.
Angle VYX is vertical from angle SYU, which is equivalent to both SYT and TYU combined, thus, the answer would be both those angles combined (64 + 40) which brings us to the conclusion that VYX is equivalent to 104.
