Answer:
Explanation:
The length of a living room is 12 feet and its width is 10 1/2 feet. The length of the room is being expanded by x feet. Assuming the increase in length is only on one side of the room, it means that the new length would be (12 + x) feet
The formula for determining the area of a rectangle is expressed as
Area = length × width
Therefore, an expression to represent the new area of the living room in square feet would be
10.5(12 + x)
New area = (126 + 10.5x) square feet