5:17 PM
Peter idly taps his pencil near the bottom of the page and lets his chin sink into the palm of his free hand. If he keeps looking at this, he thinks he's going to lose his mind. He's been trying to figure out this answer for fifteen minutes now, and he's pretty sure that he's made a mistake somewhere, but he can't find where.
Peter folds his arms against the table then lays his forehead against them with an audible groan. Truly, it is a groan of despair.