Theresa wants new carpeting for her family room. her family room is a 12 ft by 21 ft rectangle. how much carpeting does she need to buy to cover her entire family room?

252 square feet

Step-by-step explanation:

Ok so the question is basically an area question. We know it is an area question because it is asking about how much carpeting a 2d thing is needed. So as we know area is l*h (Length * Height).

So what we do is take the 12 and multiply it by 21 to get the amount of carpeting needed. When we do 12*21 we get 252 square ft.

Therefore, Theresa needs 252 square ft. of carpeting to cover her entire family room.