Identify a horizontal or vertical stretch or compression of the function f(x)=x2 by observing the equation of the function g(x)=9(x)2

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.