The best way to create your frequency table is to look at each number and place a tally in the correct interval it belongs.
After all numbers have been tallied, count the tally marks and write a number.
These numbers will represent how high the bars will be on your histogram.
Please see the attached picture for the work that goes along with the above explanation. You should always count your totals to make sure the numbers match.
Answer:

Step-by-step explanation:

<span>2y^2 + 12y- 54
=2(</span>y^2 + 6y- 27)<span>
=2 (y - 3)(y+9)</span>
X5, x6, x7, x12.7. It seemed to have been going into a pattern but then stops at the 2680. The pattern would be x5, x6, x7, x8 if the number was 1,680...?