(section: 3 / paragraph: c / line: 3)
No, students cannot give a visual clue about the number of words or breaking a word into parts. Rule 3.e allows a student to use uniform length dashes to indicate the number of words (not syllables).
(section: 3 / paragraph: e / line: 2)
No. Putting the hyphen along with the line would partly spell the word.
(section: 3 / paragraph: e / sub-paragraph: - / line: -)
A circle as a drawing wherever it occurs is allowed as long as it does not represent or is not interpreted as a Zero or a letter.