Liam, who is a floor representative for his college dormitory, wants to convince his fellow board members to make some major policy changes that he knows the majority may not favor. to influence the majority he should

In order to influence the majority of his fellow board members to make the required changes, Liam needs to find how this policies will help them and how not doing it will cause a bad effect. Once he's done it, he has to talk to them and explain with examples regarding to what he found out the reasons why this policy changes need to be made.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.