Can you answer this questions for me

the population grew a lot and was making more money

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

hello no i dont sorry.

a system of cooperative federalism emerged, as the powers of the federal government expanded.