Answer:
x = 121°
Explanation:
the shape is a heptagon (7 sides). the interior angles in a heptagon will always add up to 900°, so all you need to do is add all the known angles and subtract from 900.
140 + 133 + 145 + 117 + 119 + 125 = 779
900 - 779 = 121
this means that x = 121°
hope this helped, good luck!