Aschool directer must randomly select 6 teachers out of 30 in how many ways can the teachers be selected if the order doesn't matter

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.)