By using the number line above, an expression that is true include the following: B. 5.04 < 5.4.
In Mathematics and Geometry, a number line is a type of graph that is composed of a graduated straight line, which typically comprises both negative and positive numerical values that are located at equal intervals along its length.
This ultimately implies that, every number line would primarily increase in numerical value towards the right from 0 and decrease in numerical value towards the left from 0.
By using the number line above, each of the expressions can be evaluated as follows;
5.26 > 5.4 (False)
5.04 < 5.4 (True)
5.4 = 5.04 (False)
5.520 < 5.26 (False)