An equilateral trapezoid abcd with height 2 units has all its vertices on the parabola y=a(x+1)(x? 5). what is the value of a, if points a and d belong to the x? axis and m? bad=30o?

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.)