In a direct democracy, who votes on government policy? senators all citizens representatives only democrats

All citizens because direct democracy, also called pure democracy, is a form of democracy, in which power is exercised directly by the people in an assembly. Depending on the powers of this assembly, citizens could approve or repeal laws, as well as elect public officials. Direct democracy was exercised in Ancient Greece, and today testimonially in the annual assembly of the citizens of some Swiss high mountain cantons.

The correct answer is all citizens.

Direct democracy or pure democracy is a form of democracy where people decide on polities without any intermediary. All decisions are voted on by the people.

The earliest form of direct democracy was the Athenians democracy. The opposite of direct democracy is representative democracy.

The are different way of voting directly. Some of them include: an assembly where decisions are made and voted on, a referendum with direct voting on particular issue ( and not voting on selective candidates ), or an initiative.

Switzerland is a country known for its direct democracy as it uses referendums to vote on major government decisions. In the USA, some states make laws by referendums as well.

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

the money supply is the total amount of money available in the economy. how do changes in the money supply affect people and businesses?