15 square feet
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3 sq. ft. or 432 sq. in.
Area of room = width * length = (2x-1)*(7x+3) = 14x2 + 6x - 7x - 3 = 14x2 - x - 3 sq feet
The answer will depend on the shape: whether it is a cuboid or an ellipsoid, or just a large shapeless blob.
To find the area of a rectangle, you multiply the length by the width. In this case, 10 feet x 3 feet equals 30 square feet. This is because you are essentially finding the area of a rectangle that is 10 feet long and 3 feet wide, resulting in a total area of 30 square feet.
Area = 5.5*3 sq ft = 16.5 sq ft