Which detail from the excerpt proves that Dean creates very good/light sound equipment?

i don't really love my math teacher

explanation:

and the reason being is because she get me in trouble for the smallest things that i really don't be doing all the time it be my friends that's around me.and i love to do things that other people but when she get on my nerves i don't talk to no one i just sit there and do my work half the time.

really not a paragraph just don't want to say a lot about her : )

that’s a nice boss :

there are many stores that have sales right before christmas

what is this from, i cant tell what language he uses without the piece of literature