Find the value of x
a. 40
b. 50
c. 80
d. 60
Please someone help soon!!

Answer:
b. 50
Step-by-step explanation:
The sum of the interior angles of a quadrilateral is 360°, so the missing angle is ...
360° - 110° -40° -80° = 130°
The angle x° is the supplement to this, so is ...
180° -130° = x° = 50°
The value of x is 50.