Andrew is a technical writer in a big software firm.  his job role involves creating  network setupssoftware programsuser manuals  and support guides for  ceosend userssoftware programmers.

Andrew is a technical writer in a big software firm. His job role involves creating

user manuals and support guides for end users

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.