given good X and good Y. when X = 0 ,Y= 100; X=2, Y =90; X=4, Y=60; X=6, Y=20 find opportunity cost of good X and what change requied for thiseconomy shift the PPF outward?

Which texas rancher was among the first to move cattle from the open range into fenced land

Abrief, "first-step" presentation of a work to be completed is called a

How did the mountains on the oregon trail influence the timing of pioneers’ travels? a.) the pioneers wanted to avoid times when there was snow in the mountains. the pioneers wanted to spend as much time as possible enjoying the mountain scenery. b.) the pioneers crossed the mountains in late fall when the trees were bare and the views were good. c.) the pioneers were rugged people who were not impacted by the terrain they crossed at any time.