More than 100k for game

If I get more than 100k for my game powered by Unity Free do I have to pay some money to Unity Developers?

And if I wrote my game with Unity Pro (30 days trial) can I publish it?

a.) If your company has an annual gross revenues in excess of US$100,000, you must have a Unity Pro licence (so, by implication, the answer to your question is “yes”). Read the FAQ

b.) No, you can’t publish a game with Unity Pro trial. Read Section 1c of the EULA.