What led to discontent among Puerto Ricans even after the passage of the Foraker Act and the Jones-Shafroth Act?

In what way did expansion and global trade during the 15th to 18th centuries affect the economies of european countries?

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.

Which statement is true of both presidential and parliamentary systems of government?