Question

The mass per unit volume of a substance is known as ______​

Answer 1

Explanation:

DENSITY

The main ones that exist today are mixed economies, where the state intervenes in market activity and provides some services; laissez faire, where the state only supplies a court, a military, and police; and state capitalism, where the state engages in commercial business activity itself.

Answer 2

Answer:

density = mass/volume).