Uma expressão nula é quando seu resultado é igual a zero. Sabendo disso, qual valor de "y" que torna a expressão: 100 – 2y, nula? 10 30 50 70

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.)

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project