Write each compound inequality as an absolute value inequality. To start find the tolerance.

1.2 < or equal to '' a '' less than or equal to 2.4

The sign for less than or equal to is ≤. The inequality that best represent the given above is,

1.2 ≤ a ≤ 2.4

This means that the values of the variable "a" ranges from 1.2 to 2.4 or 1.2 - 2.4.