Respuesta :

Answer: 5.2 feet

Step-by-step explanation:

To find out how many feet are left of the lumber, sum the pieces cut off, and subtract that from the original length of the lumber.

1.6 + 1.2 = 2.8 feet.

8 - 2.8 = 5.2 feet.

5.2 feet are left of the lumber.

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