How can you find the distance d of each side of the base that extends from the goal given that the goal is 6ft long?

Which system of linear inequalities is represented by the graph? !

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

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show