Question

1. 4|m - n| if m = -7 and n = 2

Explanation:

Step1: Substitute m and n values

Substitute \( m = -7 \) and \( n = 2 \) into the expression \( |3.4m - n| \).
\( |3.4\times(-7) - 2| \)

Step2: Calculate inside the absolute value

First, calculate \( 3.4\times(-7) = -23.8 \). Then subtract 2: \( -23.8 - 2 = -25.8 \).
\( | -25.8 | \)

Step3: Evaluate the absolute value

The absolute value of -25.8 is 25.8.
\( 25.8 \)

Answer:

25.8