Social Darwinism was used in the 1800's as justification for A. the teaching of evolution in French public schools
B. extending suffrage to all males living in Great Britain
C. the European colonization of Africa
D. Germany's fight against France in the Franco-Prussian War

they were the direct result of some cultural difussion.

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

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

protected civil liberties and outlawed slavery in the new territories.