Respuesta :

sqdancefan

Answer:

  9 cm

Step-by-step explanation:

The volume is the product of the height, width, and length.

  V = LWH

  378 = (6)(7)h . . . . . . substitute given values

  h = 378/42 = 9 . . . . divide by the coefficient of h

The height of the box is 9 cm.

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