The United States expanded westward by obtaining land in three ways. Like the Louisiana Purchase, some Presidents land. Some Presidents for land by writing treaties. And other times land was over. Together we call these the 3 Bs. PLZ HELP ASAP

Which statement is not true about the missouri compromise? 1.) slave owners could pursue escaped slaves into “free” regions. 2.) maine entered the union as a free state. 3.) slavery was allowed throughout the louisiana territory. 4.) missouri entered the union as a slave state.