How much is a trb worth?

Excuse me, could you please clarify what you mean by "trb"? Is it a specific cryptocurrency or perhaps a ticker symbol for a particular asset? Without more context, it's difficult to give an accurate answer. Cryptocurrencies, like Bitcoin, Ethereum, and many others, have fluctuating values that are constantly changing based on market conditions. If "trb" refers to a particular cryptocurrency, its worth would depend on the current market price and could vary significantly from one moment to the next. Would you mind providing more information so I can better assist you with your inquiry?