First factor the numerator
b^2-6b+8/b-4 * b+8/b-2
u will get
(b-2)(b-4)/(b-4)*(b-2)*b+8
those will cancel out each other will left only
b+8<span />
If the perimeter is 39 what you have to do is 39 - 8.5 - 8.5 that will give you 22 and divide 22/2 and that gives you 11. So 11 is the length
Emily gave Jake 20% of the buttons. 20% = 15 buttons, and 15 x 5 = 75
I have no clue what the answer would be, I’ve worked on it for 25 minutes, I will get back to you if I figure it out :,)