Question

Use the associative property to identify which expression is equal to (54)(12)(2x).
(54)(12)(2x)
(54 * 12 * 2) (x)
54(12 + 2x)
(2x)(12)(54)

Answer 1

Option 3 is distributive.
Option 1 is the same thing..
Option 4 is just the terms rearranged..
I'd go with option 2.

Answer 2

Associative property:
(a × b) × c = a × (b × c)

Answer 3

Thanks @shamil98