(a^2-a-6)/(3a-a) / (a-3)/(3a+6)

if you go to wolfram alpha click on the website and paste your solution it will give you step by step instructions. hope that helps.

Step-by-step explanation:

I'm not very good at explain math problems online so this will help because I always go here for math homework.

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

need more info

step-by-step explanation:

what do you mean by "representation"? graph? table? etc.