retail store clerk calculator

please follow instructions!!

Programming Challenges Write a class named RetailItem that holds data about an item in a retail store. The class should have the following member variables: description-a string that holds a brief description of the item unitsOnHand-an int that holds the number of units currently in inventory price-a double that holds the item's retail price . Write a constructor that accepts arguments for each member variable, appropriate mutator functions that store values in these member variables, and accessor functions that return the values in these member variables. Once you have written the class, write a separate program that creates three RetailItem objects and stores the following data in them: Description Units On Hand Price Item #1 Jacket 12 59.95 Item #2 Designer Jeans 40 34,95 Item 3 Shirt 20 24.95