Answer: 10
Step-by-step explanation: We can just count the number of vertices in the star and each vertex makes an angle. There are ten vertices in a star and thus ten angles.
Answer:
$0.125 , so 12.5 cents per pencil
Step-by-step explanation:

You can double check this by doing
, making sure it equals 3.
Answer:
3,4,5
Step-by-step explanation:
appear mutiple times
Answer:
I think -3.5 is the right answer
3x^2-18+5=47
3x^2 = 60
x^2 = 20
x = 4.472 , x = - 4.472