Question

1. |20.4| = 20.4 -20.4 20 0

Explanation:

Step1: Recall absolute - value definition

The absolute value of a non - negative number \(a\), denoted as \(|a|\), is the number itself when \(a\geq0\). Since \(20.4>0\), \(|20.4| = 20.4\).

Answer:

A. 20.4