I'm having a debate about this at work. Which of these sentences is correct?

There is a total of 10 guests selected.

There are a total of 10 guests selected.

There IS a total of 10 guests selected because total is singular.
It's like saying - There IS a bar with many people in it just down the road.
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What about " there are two cars and a bike" and " there is a bike and two cars? Are they both correct?
This is like Deja Vu. I'm sure this has happened before. The answer to this is in another post.
If it's in another post, please provide a link.
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