How did the change in the Spanish policy affect American farmers in the west

Their goods traveled down the Mississippi to New Orleans where workers loaded crops onto other ships bound for markets to trade which was very important. How did the change in the Spanish policy affect American farmers in the west? ... It gave inexpensive land and U.S. control over the Mississippi River.

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to generate donations

to organize supporters

to solicit support

question 10: the answer is c, to their constituents address a problem.

question 11: i think it would be domestic bills, which deal with american issues only and public bills, which affect the whole nation.