two ways of doing this, go into setting on front browser then find app manager, locate audio books app, tap on it then tap on uninstall. second way is to go where the app is located, on the right hand corner of page you will see three bars tap on that, tap on uninstall tap on the app you want uninstalled presto you did it.
Yes it comes with a usb cord and a seperate unattached wall charger. it charges much faster when you plug into the wall. I also think you can only charge it from usb when its turned off because of the amount of electricity it needs.DO NOT LET THAT CLOUD YOU JUDGEMENT WHEN YOU CONSIDER BUYING THIS. it is a really nice tablet.
hope I helped,