How did germany’s alliances with austria affect the reaction to the assassination of francis ferdinand?

Austria could be more hostile and punishing. 

Germany offered a "blank check" of support. This meant they would help Austria in any way they needed--money, negotiations, troops, weapons, etc. This help meant Austria had more flexibility in how they responded to the assassination. With added resources they could more confidently declare war on Serbia for the assassination. 

Delaware, pennsylvania, new jersey, georgia, connecticut, massachusetts bay, maryland, south carolina, new hampshire, virginia, new york, north carolina, and rhode island and providence plantations where the 13 original colonies