The official currency of the USA is the US dollar (USD, $), which is divided into 100 cents. Notes come in denominations of $1, $5, $10, $20, $50, and $100, while you’ll find coins in denominations of 1¢, 5¢, 10¢, and 25¢.
You can withdraw currency from ATMs across the country and all major credit cards are widely accepted. Just note that a sales tax is applied to most purchases, including food and beverages, throughout the country and is added on to the advertised price. The actual rate varies from state to state, with some states offering tax-free shopping.