What affect did abu bakr have on the spread of islam?

The attack on syria was controlled by the empire he was in

With each mew y value it’s multiplied by 49. 49•49= 2401 2401•49= 117649so a. is your best bet

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.