The purpose of the economic system is to allocate it's scarce resources. Since the resources are scarce (limited) something must be sacrificed to obtain something else. That is why nothing is free (there is no such thing as a free lunch). To use a resource for one thing is to not use it for another.
Answer: Scarcity refers to the basic economic problem, the gap between limited (scarce) resources and theoretically limitless wants.
Answer:
the first nine states to approve
<span>The hijackers flew the plane into the North Tower of the World Trade Center in New York City at 8:46 a.m. United Airlines Flight 175: a Boeing 767
aircraft, departed Logan Airport at 8:14 a.m. en route to Los Angeles
with a crew of nine and 51 passengers, not including five hijackers.</span>
A republican government is similar to a democracy, where the people have the power, either through direct influence or through representatives(or both). The success comes from the freedom people have, combined with the knowledge of the specially chosen representatives can assist with creating a thriving country/society.