How did entrepreneurs bring about change in the united states?

Which choice describes some of the difficulties john adams faced as presidet

What did kublai khan learn from the chinese advisers he consulted?

Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. —"the gettysburg address," abraham lincoln which quotation correctly uses an ellipsis to shorten lincoln’s words?