please help- I honestly wasn't listening to the lesson so if you can give an explaining for the answer then pls do

Answer:
24
Step-by-step explanation:
ANGLE CORRESPONDING TO 156 IS THE ONE NEXT TO ANGLE 5 SO IT WILL BE 156 AND THOSE TWO ARE ANGLES ON A STRAIGHT LINE SO WHEN YOU ADD ANGLE 5 AND 156 IT IS 180
5+156=180
5=180-156
5=24