Which characteristic describes part of the demographics of an average country in sub-saharan africa?
a) high literacy rate
eliminate
b) high gdp per capita
c) high life expectancy
d) high infant mortality rate

I just had this question and the answer is D. high infant morality rate

credit card number 4 is the right answer

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.