Which inventor is not correctly paired with his invention?

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

Which statement might have been made by an anti-federalist?

Which of the following describes an effect of world war ll on the united states economy a. automobile companies produced a record number of cars b. many factories had to expand to produce military equipment c. the airplane industry suffered as the allies began using airplanes in combat d.cities with shipyards declined because so many ships had been sent overseas.