Write a polynomial in standard form that represents the area of the shaded region. (p+1)(2p-6)

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

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.)