Describe the one's digit of the total value of any number of $5 bills?

Question: Describe the one's digit of the total value of any number of $5 bills?

The one's digit of the total value of any number of $5 bills is always 0 or 5. This is because 5 multiplied by any integer will result in a number ending in either 0 or 5. For example:

- 1 bill: $5 (one's digit is 5)

- 2 bills: $10 (one's digit is 0)

- 3 bills: $15 (one's digit is 5)

And so on. This pattern repeats consistently regardless of the quantity of $5 bills. It's a neat property of multiples of 5!