Answer:
x = 22° , y = 112°
Explanation:
the 3 angles x, 68° , 90° lie on a straight line and sum to 180°, that is
x + 68° + 90° = 180°
x + 158° = 180° ( subtract 158° from both sides )
x = 22°
the angle vertically opposite x is congruent to x = 22° , then
y = 90° + 22° = 112°