WILL MARK BRAINLIEST if correct.

What is the simplified expression for 6(2(y+x))

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?

27/9=18/x a. x=9 b. x=18 c. x=6 d.x=3