Help pls I need to pass it right now ​

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

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?