He served as king for the Mali Empire
It means that the government, instead of free market, determines what is sold and how much it costs.
<span>South American countries have been attempting to mirror the free market system of the United States since around 1980 (the "Washington Consensus"). This has lead to economic stagnation in these countries. In order to boost their own economies, they are now looking at the models of more productive nations whose economies are growing very rapidly and are attempting to mirror their market systems. The main countries being scrutinized are China and India, who have nationalized many of their industries/resources. This would explain the shift.</span>
You put this in the wrong category, but I will still help...
Number 1: 20 centimeters( just look at the graph)
Number 2: I am guessing 40 centimeters. I think you are calculating how long it took your bug to reach point B...
Hope this Helped!