You must ensure that all answers are ( 100% correct ) by solving each problem in at least two different ways which give the same result.
Both ways must be stated ; but you only need to produce your answer to only one of your methods.
All questions must be answered on ( Excel ) , ( On the same Excel file that I've attached).
You must explain all answers step by step in understandable manner ; and you must add Comments for each answer explaining what is going on in each step.
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Dear sir, I am confident to complete all the answers by your standard and requirement. You can also request routine updates and corrections as they will be provided to ensure the quality of the work.