Angles a and b are complementary.

what is the value of x?

34
56
68
79

Angle A = x + 22°.
Angle B = x.
And since the angles are complementary:
A + B = 90°
x + 22° + x = 90°
2 x + 22° = 90°
2 x = 90° - 22°
2 x = 68°
x = 68° : 2
x = 34°
Angle A = 56°, angle B = 34°
Answer : The value of x is A ) 34°.

Letter a i would say