Acar rental company rented out 9 cars in its first month. the number of cars it rented doubled each month.

what was the total number of cars the company rented out for the first 5 months?

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.