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.
Wales is a country that is part of the larger country of the United Kingdom. Depending on the interpretation, there could be over 200 countries in the world, although the U.S. recognizes 193. 192 separate countries are members of the United Nations. Though not recognized as a voting member, Vatican City enjoys permanent observer status in the United Nations.