Answer:
(D)100 ≤ 20x ≤ 1,000
Step-by-step explanation:
Given that:
Length of the rectangle = 4x
Width of the rectangle = 5
Area of the rectangle = Length x Width
=4x x 5
=20x
Therefore, the compound inequality for the area written in terms of x is:
100 ≤ 20x ≤ 1,000
The correct choice is D.