Core 2 Duo Macbook OS 10.6.8 to OS 10.7.5 I am running 10.6.8, on a  2.1 13" white-2008 Intel Core 2 Duo Macbook
Am I able to upgrade to OS X 10.7.5 "Lion &amp; is it free or $20
Yes, you can update to 10.7.5 - I'm running it on my older (2006) white MacBook. You will have to purchase it through Apple for $20 here.