What conclusion can be drawn about the effect of the Transcontinental Railroad on these Western cities

Economic gain as well as advances in transportation.

Explanation:

As a result of railroads, American industry could expand into the west, improving that section's economy. It also brought people to and from work, sometimes bringing them to settle in the west, since America encouraged settling in the west.

b. 155 enlisted men and no officers

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.