Define γs, t to be the position in Chomp consisting of two rows of blocks, the top row of length s and the bottom of length t. We assume s ≤ t and t ≥ 1. Use induction on s + t to prove that γs, t is type P if and only if t = s + 1.

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.