ast year, Sara's piano teacher charged $40 per hour for private lessons. This year, the teacher increased her rates by 10%. How much is the teacher charging per hour for lessons this year?

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.