The process is:
C = 2nr
2nr = c
r (2n) = c

That's the answer☝️☝️☝️☝️
or maybe this one
r = 2n + c
sorry, I'm unsure, it has been too long since I studied that...
The anwser is 3.14 X 9X9 = the anwser is 254.47 or rounded it can be 254.4 or 254.5 FORUMLA: I used PI X R squared .
They get 2/3 because 2 divided by 3=2/3.
Answer:
40 meters
Step-by-step explanation:
x=4
3x-4=12-4
2x-3=8-3
12-4=8
8-3=5
8x5=40
The tax on a 48 dollar item would be $4.08