Please answer questions from 6- 9 and question number 4. Please try to solve and

Please answer questions from 6- 9 and question number 4.
Please try to solve and provide it less than 24hrs I need it very urgent also relate to the data provided in excel show the calculation and graphs please make the answers well explained and analyzed. use excell only and show the calculation in the word if needed.
– Note – solve from Q 6-9 and Question number 4