Final answer:
The Allies benefited from the US entering World War I by receiving advanced weapons, financial support, and a shift in the balance of power.
Step-by-step explanation:
The Allies immediately benefited from the US entering World War I. The US quickly supplied the Allies with advanced weapons, which significantly bolstered their military capabilities. This included artillery, tanks, and aircraft that played a crucial role in the war. The US also provided financial support to the Allies, which helped them address wartime expenses and maintain their military operations. Additionally, the entry of the US into the war shifted the balance of power, giving the Allies a significant advantage over the Central Powers.
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