Each show is different price. Check their website.
It's very close...walking distance from Union Square...check out the website
Depends on the show or performance. You can also get deals with the Groupon app for certain shows. We paid between $20 - $30 a seat for the award winning musical about Janis Joplin's life.
You didn't say where you are going and you should always call AC Transit if you want to know fares.
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