D.
None of the above. Because your expression would be, 2 + 0.75 x 6.
Hope it helps. ;)
54 divided by 6 would be 9 meaning he takes 9 quizzes a week. If directly proportional by the end of 7 weeks he would have taken 63 quizzes
Answer:
6x-9 = 6x -9
infinite solutions as they are the same equation.
