Answer:
Any number less than 4 (3 or less)
Step-by-step explanation:
Note that it is a less than sign (<) and not a less than or equal too sign. This means that the answer choices does not include 4. Any number less than 4 is your answer, (for example: 3, 2, 1, 0, -1, -2, etc.)
~
10x
8x-2
6x+4
They all simplify
