Fast please

Question No. 3 A UAE based ABC electronics company has two contract manufacturers in East Asia. Contractor A assembles its smartphones while Contractor B assembles its laptops. Weekly demand for smartphones is 4,000 units, and for laptops is 1,000 units. Smartphones cost the company AED 400 per unit while laptops cost AED 2000 per unit. The company has a holding cost of 30 percent. Currently, the company has to place separate orders with the two contractors and receives separate shipments. The fixed cost of each shipment is AED40,000. What is the optimal order size, order frequency with each of Contractor A and Contractor B, and the annual total cost? The company is thinking of combining all assembly with the same contract manufacturer. This will allow for a single shipment of all products from East Asia. If the fixed cost of each shipment remains AED40,000, what is the optimal order frequency and order size from the combined orders? How uch reduction in annual total cost can the company expect as a result of combining orders and pments