It’s for a project due Monday, the 12th so a quick response would be great! Thanks.
If it’s a multi-track show with the vocals on their own track, select the track and use the Amplify tool to reduce the volume until the proper volume is achieved.
If you have a stereo already-mixed performance, you need to separate the vocals from the rest of the show. Even with the best of tools, you get about a 10% success rate and even at that, you end up with a mono show, not stereo.
http://wiki.audacityteam.org/wiki/Vocal_Removal
If you started out life with a mono show or highly compressed show downloaded from YouTube or the internet, you don’t.
Koz