What is the most likely form of exchange that is most used in the united states today?

Five students—jalen, chris, juwan, jimmy, and ray—move into a house together and discover they share the odd habit of drinking milk with ice in it every night before bed. they own several ice trays and make a pact to always refill the trays when they are emptied so that the supply of ice will never run out. but the five often do not have the time or energy to refill the trays, and after a few weeks, it becomes quite common for them to meet in the kitchen and discover that they have no ice. this would best be characterized as what type of dilemma

Endogamy is marriage within one’s own social category. select the best answer from the choices provided true or false

Why do you think kush in nubia is not as well-known as egypt? ( me with my exit ticket)