Question: How much does it cost to mail a letter today?	letter.xls
In lesson 1.7, (Math Master p. 242) you drew a step graph to show the cost of how much a letter would cost in 2000 to mail. Here's what it would look like on a spreadsheet. But what would the graph look like today?  Open letter.xls in a spreadsheet application (such as Excel).  and complete the table similar to the one above. Note the revised rates. Answer the questions on the spreadsheet page. Reference Postal Service - http://postcalc.usps.gov