You should not use online communication to select one: a. send electronic documents to members of your study group b. let a friend know you're running late when meeting up c. give a detailed explanation of a personal problem d. share a funny joke with your friends

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.

What are your academic resolutions for 2019? what plans do you have to yourself accomplish those goals?

How do astronomers measure the amount of dark matter in the universe