$100 is a common denomination of currency in the United States, represented by a green paper bill. It features a portrait of Benjamin Franklin on the front and an image of Independence Hall on the back. The bill is part of the U.S. dollar system, which is widely used for transactions and savings. In terms of purchasing power, $100 can buy various goods and services, such as groceries, clothing, or entertainment. It is often used as a benchmark for budgeting and financial planning, helping individuals manage their expenses and savings effectively.