Which economic concept allows business to freely buy and sell goods as see fit?

Free enterprise, or the free market, is an economic system where private individuals can form companies and buy and sell competitively in the market with a minimum of government interference. Your welcome and can inahev plz

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.