Hi and welcome to the Forum. Go to Settings then General and Bluetooth is in the top half.
If you do some searches you will find the answers to a lot of your questions, if then you can't find what you're looking for then by all means post your question, there are many friendly folk here only too willing to answer your questions. 'Tips and Tricks - for those of us who don't know' - is a really great thread to learn lots of tips and shortcuts for your iPad. Enjoy!!