A sludge tank has a 90-ft diameter, sidewall depth 20 ft, and a conical bottom 8 ft deep. If the sludge liquid level is 15 ft, approximately how many gallons of sludge liquid are in the tank?

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Multiple Choice

A sludge tank has a 90-ft diameter, sidewall depth 20 ft, and a conical bottom 8 ft deep. If the sludge liquid level is 15 ft, approximately how many gallons of sludge liquid are in the tank?

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