what makes a 100 dollar bill worth 100 dollars?

It's the promise of the government to back this bill, if necessary. It's also the agreement of the people to accept this bill as legal currency.

To understand why a 100 dollar bill is worth 100 dollars, it is important to consider a few factors. First, the value of money is largely based on trust and confidence in the government and the overall economic system. In the case of the United States, the 100 dollar bill represents an amount specified by the government as legal tender, meaning it is recognized and accepted as a form of payment.

The value of the 100 dollar bill is backed by the promise of the government to honor it. This means that the government guarantees that it will exchange the bill for goods, services, or other forms of payment. If you have a 100 dollar bill, you can be confident that the government will accept it as a form of payment because they have made this promise.

Furthermore, the value of the 100 dollar bill is also determined by the agreement and acceptance of the people. When people accept a 100 dollar bill as payment for goods or services, they are essentially acknowledging its value. This widespread acceptance and recognition contribute to the value of the bill.

It is worth noting that the value of money can fluctuate due to various economic factors such as inflation, interest rates, and economic stability. However, as long as the government maintains its promise and people continue to accept and trust the 100 dollar bill, it will remain worth 100 dollars.