How many pieces are in a unit?

Question

well I recently bought something and i thought they were selling out of it and then next to the number it said units. And that left me wondering how many pieces are in a unit?

Answer 1

It depends on the context  

Answer 2

would need more info to answer.

Answer 3

one pc.coz if ur teacher,said that there is a unit circle it means that the area or,the diameter of given circle is one,another if u will buy a house there is a unit per unit price meaning unit means one