What you'll need to do is take them to the post office and have them weighed in their shipping packaging and then you can tell us how much it is so we can see how much the shipping is. :) Just a hint to try and help you out since you're new.
If you put them in a bubble mailer and send 1st class should only be about $3-4. Or there is flat rate box or mailer which is about $5. Do you accept paypal?