16.2 because when you times 9 with 9 you get 81.
After that you divide 81 by 5 and you get 16.2
The answer is 24,000. the thousands place is 0,000. place 2 in ten thousands 20,000 place 4 in thousands 24,000 and... there's nothing else to do. the answer is 24,000.
For the first question, use slip and slide or the box method to get (x-2)(2x-3)
Do the same for the second question to get (3x-4)(x+1)
B 12 minutes
Because if you look the middle of the box plot the line is at 12