The provision of this title shall not require a business tax payment for teaching musical, artistic or educational subjects when the following conditions exist:
A. The teaching is done at the residence of the teacher or at the residence of the pupil; and
B. The teacher does not employ an assistant, does not display an advertising sign at the residence, and does not make a general practice of selling merchandise in connection with the teaching. (Ord. 9517 § 1 (part), 1995: prior code § 6217)