@Coco Posey We have a separate discussion forum for Teams related questions : Tech Community Microsoft Teams
Regarding your question, attendees cannot unmute themselves in Live Event. They would need to type their question in Chat and then would be taken up for answers by the moderator of that session.
Live events are meant for one-to-many communications where the host of the event is leading the interactions and audience participation is primarily to view the content shared by host. The attendees can watch the live or recorded event in Yammer, Teams, and/or Stream, and can interact with the presenters using moderated Q & A or a Yammer conversation.
More details on Teams Live event can be found here.
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