How did vikings affect european society ? a)they caused pepin the build walls b) they eliminated the need for feudalism c) they prevented the moors from expanding past spain d) they destroyed the roman empire

can you attach the graph and answer options (:

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

step-by-step explanation:

100%     = 120

1%= 120/100=   1.2

9%   = 1.2 x 9=     10.8

10.80 to the 120 to get $130.80