ANSWER
-38
EXPLANATION
We are given the number line showing negative numbers.
We know that on the number line, as we move to the right, the number increases.
That is:
We see that the grading of the number line is 1, that is, each consecutive mark is separated by 1 unit.
B is 4 marks far from -42.
This means that we simply have to add 4 to -42 to get B.
So:
B = -42 + 4
B = -38
B represents -38 on the number line.
