Hi!pls can u help me factorise this​

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

Witch sequence shows a pattern where each term is 1.5 times the previous term

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.