First, you have to divide 90 by 10 and get 9 and now figure out how many times you can divide 36 to get nine, four times. Next, now multiply 4 by ten and that is your percentage.
600 is the total number of apples (adding all numbers in the apples*frequency column). Dividing this by 20, the number of boxes, we get 30 apples as the mean number in a box.
As already described above, the prime polynomial is that which can no longer be factored to yield a much simpler terms. From the given choices, that which cannot be factored is letter C.
