Answer:
It made it easier for cities along the Mississippi River to trade with cities on the East Coast and in other countries.
Step-by-step explanation:
In the 1700s and early 1800s, the easiest way to move products long distances by water. The Louisiana Purchase gave the United States control of the Mississippi River and the city of New Orleans, which was the gateway to the Gulf of Mexico. Thus, the Louisiana Purchase made it easier for cities along the Mississippi River to trade with cities on the East Coast and in other countries.