The volumetric feed flow rate to a thickener is 4800 gallons/minute. The ash content of the solids is 62.5% and the total sulfur content is 0.62%. The slurry pulp density of the feed is 1.03. Determine: a. The feed mass flow rate of solids in short tons/hr. b. If 99.5% of the solids in the thickener feed are recovered in the underflow stream and the solids content of the thickener underflow is 30% by weight, determine the volumetric flow rate of the thickener underflow in gpm. c. Determine the solids concentration in the underflow stream on a volume percentage basis.