Aconjecture and the flowchart proof used to prove the conjecture are shown given that abcd is a parallelogram prove < 1 is supplementary to < 3 drag and expression or phase 2 each box to complete the proof

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.