It depends on what you are measuring. Cups is a measure of volume. Pounds measures weight/mass. Water would be two cups per pound at standard temperature.
About 2.2 cups
1 cup is one cup
That is 4 cups.
that is approximately 3.6 cups
About 2.1 cups
About 20 cups.
About 1.9 cups
That is 1.8 cups
There are approximately 2.3 cups of citric acid in 1 lb.
1 lb worth of cups
Approximately 2. cups.
There are 2 cups in a lb