Yo plz help me with this!! worth 20 points

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

3x = 729 solve for x plz . it's urgent. will mark

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.