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sdaggy1 sdaggy1
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6 years ago
Stair riser height must be between:
 
  a. 3 and 6 inches.
  b. 4 and 7 inches.
  c. 5 and 8 inches.
  d. 6 and 9 inches.
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hahauebfhahauebf
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6 years ago
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