I think that i got the answer for number (30) and i think that the answer is (c) because it's George Washington and James Madison.
hope it help
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The alliance system played an important role by leading to World War I, as countries that were in alliances with other countries were obligated to support their allies when war was declared.
In World War I, two major alliances faced each other. On the one hand, the Triple Alliance formed by the Central Powers: the German Empire and Austria-Hungary. Italy, which had been a member of the Triple Alliance together with Germany and Austria-Hungary, did not join the Central Powers, as Austria, against the agreed terms, was the aggressor nation that unleashed the conflict. On the other side was the Triple Entente, formed by the United Kingdom, France and the Russian Empire. Both alliances underwent changes and there were several nations that ended up entering the ranks of one or another side as the war progressed: Italy, the Empire of Japan and the United States joined the Triple Entente, while the Ottoman Empire and the Kingdom of Bulgaria joined the Central Powers.
No "Americans" arrived in North America. However, in 10 A.D. Vikings explored the fringes of North America. Also, Native Americans crossed over from Siberia into Alaska over a land bridge about 12,000 years ago. In 1501, Amerigo Vespucci officially discovered America but thought it was Asia so he did not dock. Then in 1592, Christopher Columbus found and docked in the Caribbean and was the first man to land on America.
The Declaration of Independence.
Workers were affected by scientific management because it caused workers to, in a sense, become replaceable. Workers, under scientific management, were considered to be parts in a machine which could be replaced. Correspondingly, specialization caused tasks to become routine, as workers were completing the same tasks repeatedly to a point were they became bored and exhausted of their jobs. This also led to there being a larger number of injured workers.
