Where were two ways that the united states acquired more territory?

Find and simplify an expression for the area of five rows of square with side lengths of x

In ohio in 1872, the cleveland massacre was a violent labor dispute at standard oil refineries in cleveland. a takeover by standard oil of the refineries in cleveland. an attempt to stop standard oil from becoming a monopoly. a failed attempt by standard oil to take over other refineries.

What something thats on the news, and is going on currently?