Incorrect
Explanation
The United States purchased Alaska from the Russian Empire on March 30, 1867, for 7.2 million U.S. dollars at approximately two cents per acre ($4.74/km2).
Solve this puzzle
If Brenna had 4 piles of sand and Sara had 5 piles of sand, and they put them all together, how many piles would there be?
100 piles 1 pile 9 piles 10 piles