5. The beginning inventory and purchases of product X for the year are given below: 7 units @ $41 each Beginning inventory Purchase, March 10 8 units @ $43 each Purchase, July 22 5 units @ $45 each 5 units @ $46 each Purchase, October 9 At the end of the year there were 8 units on hand. Determine the inventory cost by

(a) first-in- first-out:

(b) last-in-first-out;

(c) weighted average.