How do i find the slope of a line on a graph

Iam not here to cheat, i just need to check my answer. how were incan commoners grouped within their social class? a. by gender and age b. by family rank c. by wealth and status d. by religious worship my answer is c. i believe this because slaves are at the bottom of the rank, whilst the emperor is above all.

What domestic issues did england and france have?

The map makes it clear that after world war ii, korea was a a) part of china b) divided country c)part of japan d)unified country