It's described as federal and civlian production of planes weapons and supplies for the military corporations.
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The question isn't complete and you might want to ask this in the math section.
But just to help you out, 3x means 3 times whatever "x" is.
Answer:
Escaping slavery would have been much more deadly and difficult without help from people along the way.
Explanation:
One of the most well-known organized networks of escape is the so-called Underground Railroad. Actually, white people (such as Quakers) were the ones who helped slaves not only leave their owners, but also survive and find sanctuary in the Northern states or Canada through informal abolitionist associations.