The school in town is building a track around his football stadium. The principal must decide whether to build a track with six lanes or seven lanes A six lane track will be 28.68 feet wide ,and a 7 -lane track will be 28.98 feet wide. If all the lines are of equal width in each track how much wider with the lines be in line 6 track then in 7 lane track

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?