Can someone please help me. please and thank you

Why do countries create guidelines and laws on how a country is going to be run?

Where did washington’s army spend a harsh and difficult winter in 1777–1778?

Which conditions did austria demand of serbia after the assassination of archduke ferdinand? check all that apply. 1. swearing allegiance to the triple alliance 2. accepting responsibility for the assassination 3. turning over control of its military operations 4. surrendering half of its most fertile lands 5. suppressing anti-austrian groups and publications