Help needed please and will give an upvote for help and correct answer thanks!

Case studies Mr. Smith is the owner of a grocery store. He has a computer and a scale. He will buy a a barcode reader. He currently manages goods in his store using Excel. Each kind of goods (e.g. bread, beef, apple...) has the following information: name, barcode number, number of available units, price per unit, provider name, and provider contact information. He currently checks out his customers' orders using a hand-held calculator and writes down the receipts manually. He enters and updates the information of the goods in his store directly to the Excel spreadsheet. He wants a store management software application 1. Create two user stories for this application (20 pts) 2. Describe the use case"checking out an order in store" (20 pts) 3. Describe the use case "updating price of a product" (10 pts)