Tickets to a 3D movie cost $13 for an adult and $6 for each child. Let C represent the number of children's tickets and A represent the number of adult tickets sold. Write an algebraic expression to represent this situation. Ticket Sales: Preview Determine the ticket sales for the 7:15PM show if 46 adult tickets and 20 children's tickets were sold. A total of $ was collected in ticket sales for the 7:15PM show.