Ineed with the short answer and essay question can someone just explain them to me but if you can maybe start it off or write it for me whichever idc

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

well i cant say as there are no answers for me to choose from.

explanation:

sorry!