D) (4 radical din 2 - radical din 2 ) × radical 2 + radical 2 × radical 18
e) radical 3 × (2 radical din 5 + 3 radical din 5) - radical 5 × ( radical 3 + 2 radical din 3)

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?