¿ Qué distancia hay entre un punto situado a 90⁰ latitud Norte y v otro situado a 90⁰ latitud sur? ¿Cómo se llaman esos puntos?​

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".

b) the confederacy had to pay all union war expenses.

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;