2= n/3 n=?
In "One-strp multiplication &division equations

What’s the domain of this function? fast

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.

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.