How did the u. s enter formally ww1

By declaring war on Germany

Explanation:

So basically Germany kept on aggravating America by sinking US ships, this includes civilian, trade, and military ships. In response, the US entered WW1.

he risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

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