Ithink that is the correct answer but i don't know.

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Which of the choices shown could be used to prove that aacp=abcp ?

How can (square root of 25) ^2 be rewritten?