Car won't start. Acts like the battery is dead, however I can't jump start it.

Try cleaning the battery cables. If the solenoid for the starter is handy, try jumping the solenoid post to the starter and have the key turned on or it will never start.

Well if you cant jump start it thats a good sign that the battery is dead so replace it and you should be fine, and another way you can try is hook the battery up to a charger overnight and if it doesnt hold its charge then you will know if its dead or not.