Answer:
v = 2 m/s
Explanation:
Given that,
Distance covered, d = 90 meters
Time, t = 45 seconds
Let v is the speed. It is equal to distance covered divided by time taken. So,

So, the speed is 2 m/s.
Let's think of an example for such an organization: United Nations, The European Union, NATO. How would you expect them to communicate with the masses?
The most likely options are either through posters, TV advertisements or press conferences seen in the TV. This means that they communicate through the media - answer b.
They stop buying the taxes
The political system most likely found with a supreme leader is a dictatorship. Hope this helps. :)