If Sophia purchases games this weekend, everything is half price. She creates the expression below to represent the total cost for both games. Simplify the expression. ½(10.00 + 4.00r) + ½(7.00 + 3.00m)

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?