Which of these is an expressed power of congress a) admitting new states b)creating a national banking system c) eliminating amendments to the constitutiond) determining what is cruel and unusual punishment

Creating a national banking system was ruled by the Supreme court to be an implied power. Eliminating ammendments is rather tedious and does not take place on a regular basis. So you're left with A or D and I would say the Constitution makes it quite clear that admitting new states is an expressed power in Article 4 of the Constitution.

the correct answered its A

the new jersey plan most resembles the articles of confederation.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.