They have the authority to pass and enforce ordinances , establish public and administrative policies , create advisory boards and commissions , and manage the city 's financial operations including preparing a budget , auditing expenditures , and transacting other city business as required by law . They possess the authority to pass and enforce ordinances , establish public and administrative policies , create advisory boards and commissions , and manage the city 's financial operations including preparing a budget , auditing expenditures , and transacting other city business as required by law .