The cell of a phone plan (y) varies directly with the amount of data included (x) A 0.5 gb plan costs $14.9) per month write a direct variation equation for the situation

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.