5. Inventory information for product 248 is given below: Jan Mar. 17 Purchase 12 units @ Apr. 29 Purchase 8 units Aug 19 Purchase 12 units Aug. 29 Purchase 5 units Sept. 18 Purchase Balance 15 units @ $10 per unit 11 per unit 12 per unit 14 per unit 16 per unit 6 units @20 per unit After taking a physical count, we find that there are 20 units on hand. Determine the ending inventory cost by

(a) first-in-first-out;

(b) last-in-first-out;

(c) weighted average.