List 2 or more differences between the North and the South.

Slavery and Free Blacks. The major difference between the North and the South -- and the one most responsible for the Civil War -- was the institution of slavery.

Industrialization and Immigration. 2. The South's slave economy supported agriculture, while the North's free society enabled industrialization.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

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