O $(3)$: The following information was obtained from laboratory test conducted on a soil sample of clay: total volume $=510\mathrm{.}2c{m}^3,$ wet weight $=960\mathrm{.}3gm,$ dry weight $=810\mathrm{.}3gm,$ specific gravity $=2\mathrm{.}7.$ Determine the dry unit weight, void ratio, and degree of saturation.