The statements that best describe how the Northwest Ordinance established a method for settlement are:
- It provided a procedure whereby new states could become part of the United States.
- It established laws that gave basic rights to settlers.
The Northwest Ordinance of 1787 was important for establishing a structured approach for governance and settlement in the Northwest Territory and laid out the process for admitting new states to the Union, while also ensuring certain rights for settlers. The other statements regarding territories becoming part of existing states and the citizenship of Native Americans do not accurately reflect the provisions of the Northwest Ordinance.