There are basically two systems, there is Capitalism and Socialism and most countries tend to use a combination of the two, known as a mixed economy.
Germany's invasion of Poland in 1939 led to the outbreak of World War II
<span>Reason it spread easily: Bacillus travels from person to person pneumatically, or through the air, as well as through the bite of infected fleas and rats.
Reason it is so deadly: No one knew what it was, nor was there a cure.</span>
Answer:
They purchased the Panama canal in 1904 for $375,000,000, if that's the canal you're talking about.
