What do states primarily use their reserved powers to regulate?

Which amendment prohibits federal and state courts and federal administrative agencies from hearing cases in which a private party names a state as a defendant without the state's consent?

Mid to high level clouds that look like layered blankets are called

Why might the spanish government have approved of the encomienda system? a the system allowed for fair treatment of all under it, leading to a happy and prosperous colony. b the system used natives as slaves which meant the government was able to maximize their profit of exported goods. c the system allowed for mostly profitable trade within the different colonies. d the system was a great example of how to successfully run a colony, making spain a world power.