Areal world problem that is represented by the division problem 38 divided by 5 r3 in which it makes sense to round up the quotient up to 8

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

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.)