What was the name of the threory that said that is one country in a region fell to communism others would surely follow

the answer is the Domino Theory

the court ruled that a state law that banned abortions (except to save the life of the mother) was unconstitutional

hope this : )

several states had passed similar laws, but they were limited to intrastate businesses. the sherman antitrust act was based on the constitutional power of congress to regulate interstate commerce.

you answered my friends question just to get the coins you didn't even give a valid response.