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What is Z+ in math?

Ryan, jessica, and mark each solved this system of equations. all of their answers are different. find and explain the mistakes. what is the correct answer? y = 3x + 2 6x – 2y = 10

Afarm grows soybean and produces chickens. the opportunity cost of producing each of these products increases as more of it is produced. draw the? farm's ppf. label it ppf0. the farm adopts a new technology which allows it to use fewer resources to fatten chickens. draw a ppf that illustrates the impact of the new technology. label it ppf1.

Compare the objectives and strategies of organized labor and populists for challenging the prevailing economic beliefs and practices of the ''gilded age.''