The uncertainty of church authority, mentioned in Source 2, most directly contributed to which of the following European developments in the 13th and 14th centuries? The Crusades
The Protestant Reformation
The Counter-Reformation
The Enlightenment

Why did some states believe they had the power to overturn federal laws?

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?  

Sanjay solved the equation below. which property did he use to determine that 7x+42=42 is equivalent to 7(x+6)=42 7x+42=42 7x=0 x=0