There are better ways to do this ...
Hiding cells is OK, but it's probably best to avoid because it'll make it harder to go back and edit data. Plus, you'll have trouble entering data in a hidden cell. What might be better would be to create a data entry page and a data output page.
Select "Show Print View" under the Print menu.
With the page breaks visible, create the cells you need to generate the data you want. Put the formulas on page one. Then when you print, just print page one. For all intents and purposes, the data is "hidden"
BTW, if you're generating invoices, won't the customer want to know how many miles they paid for?
mysterytramp, Thank you for your advice it would probably be easier to set up a work page and a answer page. If i only new how, i really like numbers as i could never do anything with excel.
As far as client information this is specifically for in house use. I want to track my revenue and etc... as soon as i figure out how to set everything up.