help me pls thanks

Instruction: Hello! I want you to meet this guys, named Johas Sajolas. He is a manager of Sojalas Pizza parlor. Every day, they are adding stock of tomato sauce in stockroom. After 5 days, they have 20 cans of tomato sauce and will be expired after 1 week. That day, they are planning to purchase again a stock for their operation which is about 20 cans of tomato. Knowingly, there are still 20 cans at hand which are about to expire. What are the 3 things would you like to advise to Mr. Johan Sajolas? 1 st thing 2nd thing 3rd thing