7. find the missing number 1: 2 = 3:
o a. 2
o b.3
o c.6
o d.1

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.