Based on the results of a survey, an advertisement states that people prefer Crispy Chips to Crunchy Delight by a ratio of 4: 3. If 8742 people chose Crispy Chips, how many people were surveyed in total ?

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?