how do i print a letter on my mac?

You can use TextEdit (located in Applications Folder) which comes with the Mac to type a letter.

Printing is covered in detail at the links below.

http://support.apple.com/kb/HT3771

http://support.apple.com/kb/HT4670

http://support.apple.com/kb/HT2713

http://etc.usf.edu/techease/mac/hardware/how-do-i-print-in-on-the-mac/

http://www.dummies.com/how-to/content/how-to-print-a-document-on-mac-os-x-snow-l eopard.html

Alternatives to Microsoft Office

Your Mac is capable of running the latest Mac operating system. You posted to the wrong forum, as no Classic operating system can run on a 2009 Mac.

I've asked this thread be moved to the iMac Intel forum:

iMac (Intel)

Go to Apple menu -> About This Mac to find your Mac OS X version, if you need more help. This tip should help you find the right category for your Mac OS X version:

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