A pool in the shape of a rectangular prism holds 672 cubic feet of water. The pool is 4 feet deep and 8 feet wide. What is the length of the pool in yards?

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.