I really need help it's an emergency!!!

What are the sotions to the quadratic equation 9x^2=4

How do i put 3(x+7) in distributive property

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.