The picture shows a model of a cell. what is the main function of the part labeled y in the model

In 2009, the author pawel bozyk, described brazil as a newly industrialized country. while its economy had not yet reached that of highly developed countries, brazil has moved itself into being a significant member of the international economy. what economic model does brazil fit into, regarding its development path?

Witch one is it soo it the the question b.a,b,c,d

Which numberline shows the solution to n -3