What is a reasonable estimate for the solution? (2 1/3, -4 3/4)

(-4 3/4, 2 1/3)

(2 2/3, -4 1/2)

(-4 1/2, 2 2/3)

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?