If the length of a rectangle is increased by 120%, and its width is decreased by 20%, what is the percentage change in the area of the rectangle? (rea=length*width)

The area of the rectangle is increased in 76 percent.

Step-by-step explanation:

The area of a rectangle () is represented by the following formula:

Where:

- Width.

- Length.

If length is increased by 120 %and width is decreased by 20 %, the percentage change in the area of the rectangle is: (, )

The area of the rectangle is increased in 76 percent.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square