Answer:
1
Step-by-step explanation:
-9-(-10)
-9 + 10 (double negative makes a positive)
1
Answer:
70 people
Step-by-step explanation:
It literaly says it in the question.
Answer:
the answer is -31/20
Step-by-step explanation:
Each pair of interior angle and the exterior angle
So the exterior angle = 360° - the interior angle.