Please please help me with all questions, this is the last question I could ask and I really need help please help me

Five jobs are waiting to be processed. Their processing times and due dates are given below. Using the critical ratio processing time dispatching rule, in which order should the jobs be processed? All dates are specified as days from today. Job due date (days) 7 Processing Job Time (days) A 4 B 7 3 D E 5 moo 4 11 5 8 A) D, B, E, A, C B)C, A, E, B, D c)B, D, E, A, C D) D, A, E, B, C E) C, E, A, B, D If it takes 60 hours to produce the first unit of a product and 50 hours to produce the 12th unit, what is the learning rate? A. 95.04% B. 94.44% C. 105.04% D. 83.32% E. 66.99% If it took 80 hours to produce the first unit of a product, and the learning rate is 80%, how long will it take to produce units 26 through 125? A. 1158.54 hours B. 1998.94 hours C. 1779.07 hours D. 2064.36 hours E. Impossible to answer in the time allowed. Five jobs must be scheduled. Each of the jobs must be processed on two machines (A and B) in the same order. The processing times are listed below. In what order should the jobs be processed? Job AB 1 162 2 1010 3314 4 2 20 5 1 12 A. 1-2-3-4-5 B. 3-5-2-4-1 C. 4-5-3-2-1 D. 4-1-2-3-5 E. 5-4-3-2-1 Consider a continuous review system. On-hand inventory equals 400, and there is a scheduled receipt of 45 units and a backorder for 335 units. If the reorder point is 800 units, how much should be ordered? a. 800 b. 0 c. 400 d. 1135 e. the EOQ amount