85 is a composite number because it has more than two factors.
85 factors are 1, 5, 17, 85
For example 5 is prime because it’s factors are only two of them
5 factors are 1, 5
See it is < and not ≤ so we don't include -4
put a circle around -4 but don't shade it in
to get there, move 4 units left from 0
then we see x is less than -4
so shade to the left of the circle
