In the United States a common quantity of hard liquor was historically a fifth, which represents a fifth of a US gallon. However, since the US wants to market its alcohol globally, and everyone else uses the metric system, it has retooled its packaging, so a common quantity is now 750 ml.
a. How many liters are in a fifth?
b. How many milliliters are in a fifth?
c. Which is larger, 750 ml or a fifth of a gallon?