21. The Nile River Valley has the greatest concentration of population in Egypt because of its: alpine climate
tourist attractions
extensive in-migration from nearby areas
many sacred sites
high-quality agricultural land

In at least two paragraphs, discuss the differences between the principles of republicanism and democracy. explain whether you think the united states is more of a republic or a democracy. refer to at least one example from the constitution

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

Many of these mythological stories were filled with violence. why do you think this is?