The length of a rectangle is twice as much as its width. if we use x to represent the length of the rectangle, which expression gives the area of the rectangle?

If Length is "Twice" it's width then we can say:

Width = 2 × Length (x)

And the Formula of Area of a rectangle is:

Area = Length × width

So we can say:

Area of rectangle = 2x × x
= 2x^2

Hope it's worth Brainliest :)

Part B: $544.5

Step-by-step explanation:

PART B:

The area of the carpet is the product of its dimensions:

.

The carpet costs $2.00 per ; therefore, the total cost of the carpet will be

.

Also, the installer charges $0.75 per to install the carpet; therefore, the total cost of installation will be

.

Thus, the total amount it will cost Amy to buy the carpet and have it installed will be