What effect did the northwest ordinance of 1787 have on westward expansion?

Which region was almost every country colonized by an imperial power in the 19th century

Which of these marketing methods henry ford sell the model t to many people who had never before owned a car? a) offering free maintenance on cars for a full year b) airing television commercials with memorable slogans c) advertising with the new communication outlets such as radio d) offering many different colors and models for buyers to choose from

What was a major failing of the united states government under the articles of confederation?