4 and 2 since 6+2 is 8 and 8 has two factors which are 4 and 2.
I believe the radius would be 3.39
Hope this helps! Good luck! :)
Answer:
I really don't know so sorry
520 pages. 390 divided by 3 is 130. Take that times 4 and you get 520. To check it, I took 520 divided by four (or you can multiply by 1/4) and got 130. Hope it helps!
