Answer:
The area of her room is:

Explanation:
We know that the area of a rectangular room is a product of its length and width.
i.e.

Darlene’s room measures 12 feet on one side and 9 feet on another.
i.e. if we let length of room = 12 feet
and width of room is: 9 feet.
Then , the area of the rectangular room is:

Hence, the area of room is: 108 square feet.