Section 12. Assessments, Advertising of Contracts and Sale of Municipal Property
   The Council may make provision by ordinance for:
   (a)   The procedure for making public improvements and levying assessments, including the procedure for combining two (2) or more public improvements, and the levying of assessments therefor in one proceeding if the Council finds that it will be economical and practical to undertake such improvements jointly;
   (b)   The advertising and awarding of contracts and the alteration or modification of contracts;
   (c)   The sale or disposal of Municipal property and such other general regulations as the Council may deem necessary, if not in conflict with the Constitution of the State and/or this Charter.