Hi Harendra I am back. (questions 6,7,8,9) with step by step calculations shown for each question. I do need original work.

Hi Harendra I am back. I have 4 questions attached in a PDF file I need solutions for. (questions 6,7,8,9) with step by step calculations shown for each question. I do need original work. (nothing copy and pasted from solutions manual). This is for operations management course.