Will give brainliest and 40 points! the graph shows the marginal cost of producing each nike. select the correct answer from the options available. based on this graph, which bike has a marginal cost of $20?
bike 1
bike 2
bike 3
bike 4

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

What from the columbian exchange had perhaps the biggest impact on the world?

Which of the following best describes the outcome of the bay of pigs invasion? -it ended in a draw despite strong air support from the united states. -it was a partial success that to resolve the cuban missile crisis. -it was a success and created hostility between cuba and the soviet union. -it was a failure that was an embarrassment for the kennedy administration.