The following information applies to the questions displayed below.] Frigid Supplies reported beginning inventory of 230 units, for a total cost of $2,300. The company had the following transactions during the month Jan. 3 Sold 30 units on account at a selling price of $20 per unit. 6 Bought 40 units on account at a cost of $10 per unit. 16 Sold 40 units on account at a selling price of $20 per unit. 19 Sold 30 units on account at a selling price of $25 per unit. 26 Bought 20 units on account at a cost of $10 per unit. 31 Counted inventory and determined that 170 units were on hand