Studio = 7 yards by 4 yards
Area = 7*4 = 28 square yards.
Area of square carpet = 1 yard * 1 yard = 1 square yard
Number needed = Area of studio / Area of square carpet = 28 / 1 = 28
Number needed = 28
Absolute zero is shown as 0 on the Kelvin Scale.
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The answer would be 169.
Hope this helps.
-Benjamin