What did people do for work in the 1700's in boston?

What was the primary concern for the missouri statehood question

Which of the following inventions most directly allowed ancient farmers to produce a surplus ?

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.