Yes you must RSVP to attend, the couple has to pay per guest so in order for you to be accounted for you need to RSVP. Please extend that courtesy to the Bride and Groom. No extra guests are allowed unless approved by couple.
Yes they will be at the same location.
The colors are black, white and gold.
No extra guests, Let couple know if you won't be attending even if you've previously RSVP, Please excuse yourself during ceremony if your child can't keep quiet,