[Echo-chan713]

Omg I hate that too my math teacher in college did that to me, everyone failed because none of the questions she taught us and one of the students said "well you didn't teach us about this so how are we suppose to know what to do" then she replied " well if you have read and do your homework you would of gotten it" (our homework had nothing to do with the formula, keep in mind this is college pre algebra). The homework was to write an essay about math, nothing to do with numbers, which I didn't do because it made no sense.