Find the unit rate 100 miles in 2 hours

What does the man of the left represent? what does the men on the right represent? why is there a hat on central and south america?

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

Who was the 12th president of the united states of american?