I am not sure but I think it is d.
if interior angle is 170, subtract 170 from 180 to find exterior angle:
180-170 = 10 = exterior angle
the sum of exterior angles is 360 so divide by exterior angle to find sides:
360 /10 = 36 sides
Answer:
20 inches of ribbon.
Step-by-step explanation:
i did 80÷4=20
so every one bows need 20 inches of ribbon.
Mean equals average
So 8 plus 10 equals 18
18 divided by 2 is 9
Mean is 9
C. No Association
This is because there is no definitive line in the graph or upwards or downwards trend