Question: A significant virtue of these curves is that they are independent of the price of labor.
The curves are separate from the price of labor because no labor is used.

Answer: it is not possible to tell

Question: In other words, the main victims of (to use another of Reich's phrases) the new economy are not the few thousand managers who have become hamburger flippers but the tens of millions of hamburger flippers, janitors, and so on whose real wages have been declining 1or 2 percent per year for the last two decades.
Food service workers wages have been on a steady rise for the past 10 years.

Answer: no

Question: The good news, however, is that freeway exits and visitor sites are well marked, and you're bound to discover an unexpected attraction to get you off the road and back to the excitement that is Los Angeles.
In Los Angeles, the freeway exits and visitor sights are well marked and easy to find.

Answer:
yes