About $400
The Louisiania Purchase was made in 1803, the U.S. paid France 15 million dollars.
Anywhere from 100 to 300$
The Louisiana Purchase included 524,800,000 acres, for which the US paid $15,000,000. $15,000,000/524,800,000 = .028582 .... cents per acre.
The average price for a medical abortion in the USA is $400. The prices are individual depending on where you go.