Say you belong to a group that has fifty members (n), and in order to get a particular benefit (b. you need fifteen members (k) to contribute. those who contribute to the provision of the benefit pay a cost (c). of course, b > c. if you know that ten members of the group (aside from yourself) are willing to contribute, what should you do?

1of the following choices, which one best describes one way that christianity came to east africa? a. christians traveled in caravans through the sahara desert and introduced the people of mali to a new religion. b. christian traders from the mediterranean interacted with the people of axum. c. christian military from west africa traveled across the continent to bring their religion to the people of east africa. d. christian rulers from asia traveled to east africa to bring their religion to the people. 2 which trade item from outside the region did west africans need most? a. gold b. camels c. salt d. iron

The provisions of subpart d, of the hhs regulations, additional protections for children involved as subjects in research apply to: all research involving childrenall research that is > minimal riskall research funded by any federal agencyall research funded by hhs

Why is it difficult to determine which countries belong to europe and which belong to southwest asia