i need to finish this ASAP, im already behind and i rly need this. (you dont need to do the work, just answer the other things please) thx!

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.