Circumference is equal to diameter multiplied by pi. C=d X pi. To find the radius we need to rearrange this equation. We know what pi and the circumference are, so to find diameter we do circumference divided by pi. D=c/pi. 942/pi = 299.85. This gives us the diameter, for the radius simply divide by 2 which is 149.92 :)
2.41667, you can also find a converter online.
Answer:
y=5+2x
Normally I would explain it, but im in a bit of a hurry today. I apologize for the inconvenience!