They all refer to the different types of government systems there are. An example would be that the United States has a a federal government system because both the state governments and national government share equal power.
60 Minutes in a hour. Because they based their math off of the number 60. So it has to be D
Van Tassel what should you do when driving at night. If it's raining and you are driving at night you should aim to be 6 seconds behind the vehicle in front of you. Van tassel believes increasing the space cushion around your vehicle would avoid a potential collision with another car in front of you.
(hope this helps!)