Please help and give a explanation I will give brainliest and 25 points

Given: ac and db are diameters. m∠3=

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

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.)