I am trying to create a spreadsheet where I can enter a date and have a date
27 days from that date pop into the cell next to it. I need to do this for 7
months. I don't even know if it's possible.

For example, if I put the date 10/01/2008 into a cell, I want the
spreadsheet to calculate 27 days and put that date into the next cell
(10/28/2008). I want it to do that for 7 cells.