Δabc is reflected across the x-axis and then translated 4 units up to create δa′b′c′. what are the coordinates of the vertices of δa′b′c′?
a′(-3, 3), b′(-1, 1), c′(-2, 3)
a′(3, -3), b′(1, -1), c′(2, -3)
a′(3, -5), b′(1, -7), c′(3, -5)
a′(-3, 3), b′(-1, 1), c′(-2, -3)

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.