Answer:
The attic is 7 feet tall.
Explanation:
8 5/6 + 8 1/2 = 53/6 + 17/2 = 53/6 + 51/6 = 104/6
24 1/3 - 104/6 = 73/3 - 104/6 = 146/6 - 104/6 = 42/6 = 7 Feet tall
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