The following questions involve inventory management using the demand data in the table below for 14 weeks (weeks 12-25 for the year) for one product.

week	demand	Inventory (210 at end of week 11)
12	50
13	30
14	30
15	40
16	50
17	40
18	30
19	30
20	50
21	40
22	30
23	30
24	30
25	40

Suppose inventory is managed with a periodic review system where orders are placed every 5 weeks and R = 300 units. The previous order was at the end of week 10 and the order amount was 100 units. The lead time is a constant 3 weeks. At the beginning of week 12 the inventory level is 210 units. Orders are made at the end of a week. Fill in the empty column in the table above with the inventory level at the end of each week; then answer the following:

(3 pts.) a) When is the next order? end of week ________

(4 pts.) b) How large is the next order? ____________

(3 pts.) c) When is the next order (after the one in part a)? end of week ________

(4 pts.) d) How large is this next order? _____________