Where did we get most of our knowledge about Mansa Musa?

Find and simplify an expression for the area of five rows of square with side lengths of x

In italy, the distance between milan in the north and palermo,sicily, in the south is about 550 miles. in the united states, the distance betweenboston, massachusetts, and savannah, georgia, is about 900 miles. do you think the american revolutionaries of 1776 in the 13 colonies faced some of the same challenges as the patriots who struggled for italian unity in the 1860s?  

Tension between the british and boers was caused primarily by what things?