What was a key reason for the post-war cash crunch in america?

Duty free shops in airports and in international boats sell merchandise that can be brought into the country without which of the following

Market, planned, and mixed are three basic types of imperialism fascism economic systems political organizations © ask for next question

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal