You are the senior class president and are selling items for a school fundraiser. You have cell phone cases and t-shirts that have the school logo on them for sale. Each case costs $12, and each t-shirt costs $7. After selling a total of 60 items, you have made a total of $450. How many cases and t-shirts were sold? 5 cases, 55 t-shirts 6 cases, 54 t-shirts 54 cases, 6 t-shirts 55 cases, 5 t-shirts