Which statements accurately describe the expansion of the united states between 1789 and 1850?

choose all answers that are correct.

a.
the united states purchased the louisiana territory from spain in 1820.

b.
the united states occupied the oregon territory at the end of the war of 1812.

c.
the united states annexed the republic of texas and made it a state in 1845.

d.
the united states acquired much of the southwest at the end of the mexican war.

monopolies  came to the united states with the colonial administration. the large-scale public works needed to make the new world hospitable to old world immigrants required large companies to carry them out. these companies were granted exclusive contracts for these works by the colonial administrators. even after the american revolution, many of these colonial holdovers still functioned due to the contracts and land

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possible the invasion of room could have been avodiable but the people of rome were to stubboron and to wealthy the kingdoms saw them as a threat if they dialred it downa   bit ten i dont think they wouldnt failed   china was not iacvvdoaible they caused war to much and were out of hand therefor that must have happened india i dont really know it could of