Mr smith bought 8 tickets to a local art show and spent $49. he bought a combination of child tickets for $5 and adult tickets for $8 each. write a system of equations to
determine the number of adult, a, and the number of child tickets, c, he bought solve the system of equations

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?