How did President Theodore Roosevelt's Big Stick policy differ from Dollar Diplomacy and Moral Diplomacy?

Which piece of legislation granted african americans the right to vote

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.

Concerns about the environment prompt congress to pass a $1 surcharge tax on each gallon of gasoline. which statement best describes the impact of such a tax