In both words and numbers, could you please help me answer this question with the steps involved? Thank you

Section B2: Fill in the blanks questions The questions in this section are worth 18 points in total Firms in some industry incur a total cost of c(y) = 4y + 12y + 25600 for supplying y units of the commodity. All the firms the industry share the same cost function. If a firm is not in the industry, it incurs no production costs, but cannot supply the commodity. In the short-run, firms already in the industry cannot exit the industry, and firms not already in the industry cannot enter it. In the long-run, firms can enter and exit the industry freely. Question 27 8 pts In the short-run, a firm would supply units at a price of 8 In the long-run, a firm would supply units at a price of 8 In the short-run, a firm would supply units at a price of 28 In the long-run, a firm would supply units at a price of 28 In the short-run, a firm would supply units at a price of 700 In the long-run, a firm would supply units at a price of 700 A firm incurs the lowest average variable cost if it produces units A firm incurs the lowest average total cost if it produces units