Answer:
98
Explanation:
The total sum of all of the angles in the polygon should be 720 because it has 6 sides, so we can say that x+102+120+148+140+112=720. I can confirm that x=98 is the answer, so I suggest talking to your teacher because they might've made a mistake, assuming that 98 is the answer you put(that's what it looks like on the paper)