Maricruz can also run 20 feet in 10 seconds. But if she has a 15 feet head start (when t=0), how far will she be in 30 seconds? In 90 seconds? What is Maricruz's speed (in feet per second)? What rule did you use to find her distance?

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.