Respuesta :

7 feet is the average length.

Answer:

Estimated length of a real chalkboard = 7 feet.

In inches, it is 84.

Step-by-step explanation:

Estimated length of a real chalkboard = 7 feet.

1 foot = 12 inches

7 feet = 84 inches

Therefore,  estimated length of a real chalkboard  = 84 inches

Hope this will helpful.

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