The first number line represents the solution to the inequality n > 3.
Step-by-step explanation:
We are given a inequality in one variable n as:
n > 3
We know that the solution to n>3 is the set of all the values which are strictly greater than 3 i.e. the shaded region in the number line is to the right of ' 3 ' and goes to infinity with open circle at 3 since the inequality is strict.
Also, in interval form the solution is represented by: (3,∞).