so the answer for this particular question is unknown because I havent done this course before
V = l * w * h
240 = 20* h
divide both sides by 20
12 = h
height = 12 inches
Well if the student already finished 6 problems out of 15, there are 15-6 = 9 homework questions she still has to finish.
Still needs to complete: 9.
Already finished: 6
9 : 6.
Simplified: 3 : 2