ERMS is selling tickets to a musical performance. On the first day of ticket sales the school sold 8 adult
 tickets and 4 child tickets for $32. On the second day they sold 5 adult tickets and 3 child tickets for $21.
 Find the price of an adult ticket and the price of a child ticket.
 Adult ticket (x): $
 Child ticket (y): $
 (i already asked this but no one responded)