Need Answer asap please...

Q=4,5,6,7 .... Or if you answer for all .... Appreciated

QUESTION 1 R. C. Barker makes purchasing decisions for his company. One product that he buys costs $50 per unit when the order quantity is less than 500. When the quantity ordered is 500 or more, the price per unit drops to $48. The ordering cost is $30 per order and the annual demand is 7,500 units. The holding cost is 10 percent of the purchase cost. If R. C. wishes to minimize his total annual inventory costs, he must evaluate the total cost for two possible order quantities. Determine question 1 to 3 based on this

question: What are these two possible Optimal order quantities (EOQ)? (Round answer to nearest unit) A. 300 and 306 B. 300 and 500 C. 306 and 50 D. 306 and 500 2 points

QUESTION 2 What are these two possible adjusted order quantities (Q)? (Round answer to nearest unit) A. 300 and 306 B. 300 and 500 C. 306 and 500 D. 500 and 306 2 points

QUESTION 3 How many units should R. C. order to minimize his total annual inventory cost? (Round answer to nearest unit) A. 300 B. 306 C. 500 D. 200 2 points

QUESTION 4 The demand during the lead-time is normally distributed with a mean of 40 and a standard deviation of 4. If the company wishes to maintain a 90 percent service level. Determine question 4 to 6 based on this question: How much safety stock should be held? A. 45.12 B. 41.28 C. 1.28 D. 5.12 2 points

QUESTION 5 For the problem above what is the ROP? A. 45.12 B. 41.28 C. 1.28 D. 5.12 2 points

QUESTION 6 For the problem above what is the annual holding cost where the order quantity is 500 units and $2.00 for the holding cost per unit per year? (Approximately) A. $503 B. $510 C. $583 D. $590 2 points

QUESTION 7 Daniel has computed the EOQ for a product he sells to be 400 units. However, due to recent events he has a cash flow problem. Therefore, he orders only 100 units each time he places an order. Which of the following is true for this situation? A. Annual ordering cost will be lower than annual holding cost. B. Annual ordering cost will be higher than annual holding cost. C. Annual ordering cost will equal annual holding cost. D. Annual ordering cost will be unaffected by the order policy change. 2 points

QUESTION 8 CAL Electronic ware house sale AAA batteries, and is very popular item. Demand for this is normally distributed. Average demand was 40 packs per day and a standard deviation of 12. Lead time is constant and which is 4 days. A 95% service level was desired. (Approximately). Find the ROP. A. 436 B. 200 C. 295 D. 310 2 points

QUESTION 9 CAL Electronic ware house sale Cell phone batteries. Lead time for this is normally distributed. Average Lead time is 6 days and a standard deviation of 3. The daily demand is constant at 30 packs per day. A 90% service level was desired. (Approximately). Find the ROP? A. 436 B. 200 C. 295 D. 310 2 points

QUESTION 10 CAL Electronic ware house sale AA batteries, and is very popular item. Demand and lead time for this is normally distributed. Average demand was 50 packs per day and a standard deviation of 16. The average delivery time is 5 days and standard deviation of 2 days. A 96% service level was desired. (approximately). Find the ROP? A. 436 B. 200 C. 295 D. 310