-3y > 9 or y - 6 > 2

Your answer is: y < -3 or y > 8

The union consists of all of the elements that are contained in each interval.

Step-by-step explanation:

Hope this helped : )

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

i would say c is the best answer, hope it's right!

good luck! =)

cutie~