4. At a certain time of day, an 18-foot pole casts a shadow that forms an angle of 50° with the ground. How long is the shadow?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

If you could answer these your a life saver

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.)