• Use Product table to match 'Hair Dryer' to items
• Use Item table to find invoices
• Use Invoice table to find customers
• Pull info from Customer table

SELECT Customer.City, Customer.State, Customer.Zip
   FROM Product, Item, Invoice, Customer
   WHERE Product.Description = 'Hair dryer'
      AND Product.Product_Code = Item.Product_Code
      AND Item.Invoice_Number = Invoice.Invoice_Number
      AND Invoice.Customer_Number
         = Customer.Customer_Number