Performance of functions of legislative delegation, council, and mayor in county which has withdrawn from regional housing authority

In any county which has withdrawn from a regional housing authority to establish a county authority pursuant to this article, the county council or board which constitutes the governing body of the county shall exercise the powers and perform the duties prescribed for city councils and mayors in Article 5 of this chapter, and perform the functions of the legislative delegation and Senators prescribed in SECTIONS 31-3-720, 31-3-740 and 31-3-770.