I accedentily deleted my pages on my Macbook pro. And dont have 20$ how can i get it back for free?

Time Machine backup?

Even without an external drive as long as you have Time Machine turned on you can go back a limited amount to restore.

local snapshots are made hourly in the background.: http://support.apple.com/kb/HT4878

If you havent emptied the Trash, you can just drag is back. You can also get it back from the AppStore. Fact is, you should always keep a backup of all your Applications too, just in case.

Try finding the disk you installed it from, but if you didnt use that, and you bought it from the app store try just going to the app store and it should let you re-download it once you log in to your account

Andrew

If you are entitled to the product by virtue of having bough it or as part of the default package that came with the Mac, once you have logged into the account used to register the Mac on the App Store, you should find it in the Purchases tab. From there you can reinstall.