Answer:
Trevor is just under halfway through his homework
Explanation:
The following information is given in the question
Trevor has completed 5 of his 12 homework problems
So here the total number of homework is 12
And, out of them trevor has completed 5
So if we do the half of 12 than it would come 6
This means that trevor just under halfway the homeowrk
Therefore the last option is correct