An exchange rate is used to a) promote the argument supporting free trade. b) promote the use of subsidies on foreign goods. c) determine the price of one country's imports in terms of another country's imports. eliminate d) determine the price of one country's currency in terms of another country's currency.

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

Which option below best represents what is included in the calculation of the united states gross domestic product (gdp)? a. 1 b. 2 c. 3 d. 4

Under the us constitution, some powers belong to the states. choose the power that belongs to the states.