according to the research, which household labor arrangement is correlated with the happiest opposite-sex couples?

An atom of element a has 73 protons. what would the element's atomic number be?

Which type of market produces the highest level of output at the lowest price to consumers?

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