Please answer all parts and include the formulas.

Question 2: (25\%) The ABC company produces brass door knockers, among other things. 'The company expect next year's demand for dollar knockers to be 20,000 units at a uniform rate. It costs $150 to set up the equipment to produce the door knockers, and the production are is 6000 per month. The company's accountant estimates that it costs $50 per year to hold a knocker in inventory. a. How many knockers should the company produce each time it initiates production of the product? b. It takes 3 weeks from the time the warehouse orders more knockers until finished knockers begin to arrive. At What inventory level should the company release production orders if it desires 1.5 times the average lead-time use to be designated as safety stock? c. Please fill out the following blanks. D= d= Working Weeks= S= P= p= Unit Production Cost= H= How many servings should be produced in each production run? EPL=(2DS/(H(1D/P)))n5 How many times of production run in a year? PIEPL How may days for each production run? EPL/p Minimum Inventory SS Maximum Inventory Q(1d/p)+SS Average Inventory Holding Cost =q(1d/p)/2H Ordering Cost=D/Q*S Total Cost=