How did the triangular trade benefit europeans? europeans obtained specialized goods from the new world. europeans obtained an enslaved workforce for plantations in europe. europeans profited from selling fur to plantation owners. europeans profited from precious metals discovered in the new world.

Europeans profited from precious metals discovered in the New World.

Explanation:

The triangular trade was common in Europe during the colonies time and it consisted in trades on three different parts of the world, in the European part they´d send finished goods, like mirrors, sugar, textiles, or other products and they´d exchange them for slaves, that later would be traded in America for primary goods, like cotton, sugar canes or precious metals, that then´ would be traded back to Europe.

the answer to your question is:

strong-mayor system

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.