I just need to figure out why the rule to get the answer is correct. the equation is 1/x^-m=x^m and i know the answer is x^m but why do I need the rules in order to answer them.

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

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.)

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?