The European Parliament functions include approving EU legislation together with the Council, exercising democratic control over other EU institutions like the Commission, and discussing and adopting the EU budget along with the Council. It is composed of Members of the European Parliament from each EU country, with the number of MEPs generally proportional to the country's population. The Parliament exercises influence by approving the Commission and can force it to resign, supervises its work through reports and commissioner questions, and establishes inquiry committees on citizen requests. Its headquarters are located in Brussels, Luxembourg, and Strasbourg.