Evelyn drinks 8 glasses of water a day ,which is 56 glasses of water a week. how many glasses of water does she drink in a year? (1 year = 52 weeks)

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?