How can bar diagrams help you to write expressions in which letters stand for numbers

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

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 are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).