Who was the 21st president of the united states?

Which fact would this be, and how might you verify the truth?

This chart shows american troop strength during what conflict? a) gulf war b) korean war c) vietnam war d) world war ii

What governments allow the use of the initiative, the referendum, and the recall? a. all state governments and the federal government b. some state governments and the federal government c. some state governments d. all state governments