This kind of information could be found on a survey where a comparison between the poem and the song can be found-. In the case of the notecard can be used as a speech reminder and the source card might be used for indexing as well as referencing main pages.
14) Is incorrect ,here iswhy.First of all 8 x 10 = 80 so that would proove that 8 is a factor of 80. Second of all just because a number doesn't end in zero doesn't mean it's not a factor of a number