How much is a Rio to a dollar?

Could you please clarify your question? Are you referring to a specific cryptocurrency or token called "Rio," or is this a reference to a different type of asset or currency? If "Rio" is indeed a cryptocurrency, please note that the value of cryptocurrencies can fluctuate significantly over time and vary depending on the exchange or platform you're using to buy or sell them. To get an accurate answer to your question, you would need to check the current market price of "Rio" on a reputable cryptocurrency exchange or price tracking website. However, if "Rio" is not a cryptocurrency, then I apologize for the confusion, and I would need more context to provide a meaningful response.