That's because day 1 no longer counts against the 70 hour limit (you are only required to count the current day and the previous 7 days for 8 days total). Since the driver had -5 hours available and 10 hours fell off the calculation, the driver had a total of 5 hours available on the 70 hour limit.
How many countries are there in the world? Since South Sudan became an independent state on 9 July 2011, there are now 195 independent sovereign nations in the world (including disputed but defacto independent Taiwan), plus about 60 dependent areas, and five disputed territories, like Kosovo.
Currently, there are between 47 and 55 countries on the continent of Africa. The most accurate count of countries for the continent of Africa is 55. This includes all internationally recognized territories and states on the continent. The variation is a result of disputed territories and inconsistencies around the inclusion of island nations off the coast of Africa. The African Union recognizes 54 countries while the United Nations recognizes 54 as well.