The ratio A/r² would represent

which is the circumference of a circle divided by its diameter.
You can see this because the area of a circle is

r² and if you divided that by the radius squared, you are given pi which is the circumference of a circle divided by its diameter.
YOU CAN DO Y=MX+B AND YOU WILL FIND YOUR ANSWER
What exactly is n? I need to know n so I can figure out m.
Answer:
I believe its B.
Step-by-step explanation: