Answer:
The width is 18cm
Step-by-step explanation:
If the equation of the area of a rectangle is:
Area = length * width
Then you substitute in the values you know:
144 = 8 * width
To find the width you need to rearrange the formula to make the width the subject. Do this by dividing the area by the length:
Width = 144 / 8
Width = 18
So the width is 18cm