Perform the calculations and determine the absolute and percent relative uncertainty. express each answer with the correct number of significant figures. to avoid rounding errors, do not round your answers until the very end of your calculations.[9.8(±0.3) - 2.31(±0.01)]/[8.5(±0.6)] =

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)