What does macro economics focus on trying to understand? check all that apply

the changes that take place within an economic system as a whole

he challenges that economic systems face, such as inflation and unemployment

patterns of change within an economic system, as seen through economic models

answer; ///i believe that the correct answer is (d) when each house of congress passes a different version of a bill and those difference must be

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.