Aball is thrown into the air from a height of 9cm above the ground, and its height is given by s=128+32t-16t^2, where t is the time in seconds
1) find the values of t that makes s=0.
2) do both of the values of t have meaning for this application? explain why

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.