Who controls the prices of goods and services in an econemy system of communism

Which sociologist posits that, as a society modernizes, it must rely less on tradition, and more on rational, and impersonal procedures?

Why was frederick douglass encouraged by the dred scott decision?

Plz 20 ! in a citizens elect the president as head of government separately from the legislature? a: parliamentary democracy b: communist state c: presidential democracy d: autocratic state