What did the decision by the supreme court in youngstown sheet and tube company v sawyer reinforce

The venn diagram below shows some services provided by state and local governments. the answer choices are (1) - creating a police force, (2) - regulating taxicabs, (3) - regulating savings banks, (4) - issuing driver licenses.

In 1819, what did the united states obtain from spain for $5 million?

What was the effect of the industrial revolution on the working class ?