Find the 12 term of the geometric sequence 2,10,50,

Anyone know? will mark brainliest if correct

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

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?