Answer: D. The value of stocks can rise and fall unpredictably
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P z is Q = p-Q and that’s the answer
The Homestead Act was attractive to settlers, because it gave land to anyone over 21, or head of family (even women and former slaves), who applied for land, this land for a very cheap price (or no price at all) and through this it enabled easy settlement. The farmers had to then cultivate the land for a period of time, and if they did not abandon it and tended to it properly, it became their property.
Na/K concentration in and out of the cell at the homeostatic level. It does this by pumping sodium and potassium ions in and out when it's needed of it in order to maintain the concentration of both ions stable across time.
The Enlightenment philosophers influence the Founding Fathers of American government by providing the ideas of natural rights, government by consent, and separation of powers, which promote the greatest possible liberty for the people.
The answer to the question would be letter D.