Calvin bought 2 t-shirts for $50, and Bradley bought 4 t-shirts for $90. Did they pay the same rate? Explain your reasoning.

No they did not bc Bradley paid less than Calvin bc if you get $90 divided by 4 it is $22.5 per shirt for Bradley but if you do $50 divided by 2 Calvin paid $25 for each shirt and then add $25 4 times bc Bradley bought 4 shirts and not 2 so get Calvin unit rate and times 4 and compare and you will see Bradley paid less for 4 shirts than Calvin