How did Hamilton and his fellow soldiers help in the battle of Yorktown? -killed a majority of British soldiers
-lead Washington's advance
-stole 21 cannons
-threw tea in the harbor

lead Washington's advance

Explanation:

they united the colonies in their fight against the british.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.