Answer: B and F I believe
Step-by-step explanation:
Answer:

Step-by-step explanation:
25= r•r•8 ⇔ 25/8 = r²
then

Hi, there!
I'm not sure what you want to solve in these equations. Please provide me with more details. I am sorry if you were looking for answers to the question, but I simply do not know what you are asking for.
Thanks!