Place the indicated product in the proper location on the grid. (x + 1)(x - 1)

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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.)