Lines a and b are parallel.
Parallel lines a and b are cut by transversals s and t. The angles formed by the intersection of lines a, s, and t, clockwise from top left are blank, 60 degrees, blank, blank, blank, blank; formed by lines b and s are blank, blank, 124 degrees, blank; formed by lines b and t are 4 x degrees, blank, blank, blank.
What is the value of x?
15
16
56
64
