How does the relationship between gliders and airplanes help the reader understand how the Wright brothers achieved flight?

The country of france is bordered by which two large countries

According to "the experts: does the patent system encourage innovation? " what is a key problem with companies pursuing patents specifically to hinder, or prevent, competition?

The us federal reserve strengthen the economy when it controls the supply of money, the availability of credit, and tariffs. inflation. foreign investment. minimum-wage laws.