Answer:
all work is shown and pictured
28/2 or 28 x (1/2)
You can either divide $28 by 2 or multiply it by (1/2)
Answer: im pretty sure its c
Step-by-step explanation: the numbers start at negative and show it is less then until it is it at the highest positive number
Answer:

Step-by-step explanation:
Formula of circumference is 
r = radius
plug in the numbers into formula to get
which will eqaul 
C is the correct answer
Hope this helped