MODELING REAL LIFE A softball coach buys equipment for two teams. The coach buys 4 bats, 36 softballs, and 12 uniforms for Team A and 6 bats, 45 softballs, and 15 uniforms for Team B . Each bat costs $80, each softball costs $4, and each uniform costs $20. Use matrix multiplication to find the total cost of the equipment for each team.
What is a proportion?