This file contains summary information on invoices processed by Hank's Hardware. The variables are: invoice number customer number invoice data invoice total 0001 002 05/15/2004 35.00 0002 002 06/12/2004 25.50 0003 001 07/15/2004 5.00 0004 002 12/15/2004 72.50 0005 003 01/25/2005 10.00 0006 005 03/15/2005 52.75 0007 002 04/12/2005 25.00 0008 001 07/12/2000 16.00