<span>Kevin is 16
Timothy is 10
------------
check:
4 yrs ago Kevin was 12
4 yrs ago Timothy was 6
Kevin was twice his age
OK</span>
Answer:
3
Step-by-step explanation:
This task is about reflecting the numbers you have given. So if you had 3 and -3 in the first point, the second one is -3 and 3, following 6 and 3 is reflecting 3 and 6. Finally 3 and 3 reflection is 3 and 3 :)
All except 0. The inequality is saying that x must be less than or equal to 3 which all answers except 0 are.