Roughly 7! 7 x 48 is 336 which is two short so maybe just say 8 to be safe.
Italy is surrounded by sea, meaning that there is always accessible trade routes through water. In earlier days, water trade routes became much more popular due to not having to travel through rough terrain. Therefore, the economy boosted as trade increased.
B,C,and E
Those are the answers because if you think about it all three of those things are causing an effect