Black holes can indeed move through space. ... Astronomers know about the rapid motion of this black hole because it has a nearby companion star that's slowly being pulled apart by the gravity of the black hole.
Answer: The power of the strong federal government
In this case, any value given up by not choosing to
<span> spend or save the money is the "opportunity cost", because the money </span>could be spent elsewhere. "trade offs" and opportunity costs are very similar though in economics.
James Madison is the one who say that