Ineed with this question someone me

Sadly, I can't remember the name of who's 'Law' this is 
in Electricity and Magnetism, but it says that the net
flux passing through a closed surface is equal to the
net charge inside.

In the picture, the net charge inside the surface is ( + q - q ) = Zero.

So it must follow, as the night follows the day, the net flux
through the surface is Zero. (D)   

Im not from america so could you explain what route 70 is? how much km or miles does it have? am i supposed to know ,from this text,what the s(road) is? how many km or miles it has?