B
The writers did not want a central national government because they had thought that a strong government could abuse their powers. So states were made superior.
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E since a lot of taller buildings have a lot of steel in them before being covered in other material
125% of 12.8 is 16. x= 125% (12.8/x = 100/125) (12.8/x) *x and (100/125) * x (multiply both sides by x) 12.8=0.8*x (divide both sides by 0.8 to get x) 16=x so the answer is 16.