What does the quote mean in the context of the talk "we do not see the world not as it is but see it in the most useful way"?

Maggie graphed the image of a 90 counterclockwise rotation about vertex a of . coordinates b and c of are (2, 6) and (4, 3) and coordinates b’ and c’ of it’s image are (–2, 2) and (1, 4). what is the coordinate of vertex a.

In regards to acetyl coa in the tca/kreb's cycle: how many cycles minimum would it take for an acetyl coa carbon to be removed? (what is the first step that this removal could happen? why can't we know for sure how many turns it takes?

Stratified systems are: caste, slavery, class and estate. in your opinion which 2 stratified systems have the most in common. then discuss 2 systems you believe to be the least similar.