Park hoppers, tickets, and Disneyland hotel!! HELP!!?

If the ticket is unused, check the back for the valid dates and it should still be good. Go the the ticket window and ask if the ticket can be upgraded to a 3 day park hopper and you can pay the difference. A one day park hopper ticket costs $105 now. Room rates depend on the day. The only way you can get the exact amount is to call the hotel and ask them. If you're staying in the same room, the cost would be the same, but you would have to pay for another room if you are getting an extra room.