How did the u. s constitution remedy the weakness of the articles of confederation

How does the balance of trade look different in the us today vs hot it looked in the 70's

Indicate the point where a monopoly will set its price

During the 1980s, profit from the sale of weapons to iran was used to stop the communists in costa rica. start a proxy war in el salvador. support the contras in nicaragua. stage a coup d’état in guatemala.