For health reasons sarah needs to limit her fat intake to 25% of the total calories consumed in a day if the fat intake is 550 calories find the total number of calories you consume for the day

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?