Sebastian stood and wrote down in his notebook as the others arrived.This was the first time he'd ever taught, besides one on one tutoring. He saw Jeffery sleeping and saw Penny take a... Organic Science book? Why had she taken that? He did not know, so he picked up a Math book and put it on her desk as he walked over, taking the Organic Science book. He walked over to Jeffery and slapped his desk with a ruler infront of his face. He began walking back to the front of the room, picking up and taking Rowena's sketchbook. He set down the sketchbook and the textbook on his desk. "I suggest all of you take this seriously." he said once he got to the front of the room. He opened a math book that was left on the desk, and turned to one page he found good. he turned to the chalkboard, and wrote down this:
[hider=problems]Simplify the following algebraic expressions.

A -6x + 5 + 12x -6 

B 2(x - 9) + 6(-x + 2) + 4x 

C 3x2 + 12 + 9x - 20 + 6x2 - x 

D (x + 2)(x + 4) + (x + 5)(-x - 1) 

E 1.2(x - 9) - 2.3(x + 4) 

F (x2y)(xy2) 

G (-x2y2)(xy2)[/hider]