There is 7000 feet of fence they want to design a fence that mazmizes the area for animals to roam. The barn is going to be one of the sides of the fence, they only need to use the fencing for 3 sides. What dimensions should be used for maximum area

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?