7-2-4806. Contents of notice -- protest period. The notice shall be to the effect that:

(1) such resolution has been duly and regularly passed; and

(2) for a period of 20 days after the first publication of such notice, such city or town clerk will receive from the owners of the territory proposed to be excluded expressions of approval or disapproval, in writing, of the proposed alterations of the boundaries of such city or town by the exclusion of the territory petitioned to be excluded.