1) The cafeteria workers keep small milk cartons in the refrigerator in stacks of 7 . If each worker carries no more than one stack then at least cafeteria workers needed to carry small milk cartons for a class of 45.

2) In the teacher's lunchroom, teachers sit at tables for 8 . There are 69 teachers eating lunch, so tables must be set up.

3) A truck is loaded with 11005 kilograms of food. Each box of food weighs 31 kilograms. That means that there are boxes on the truck.

4) There are 5270 auto parts to be packed for a shipment with as many boxes full as possible. The parts are to be packed 24 to a box. There will be full boxes and parts left over.