Expanding Expressions 3(x + 3)
4 points
4(x - 7) *
4 points
5( x + 12) *
4 points
-2(x - 9) *
4 points
-3( x + 7) *

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?