Find attached that required solutions for 5 questions .



1- Required to give me a smart answer and short with easy equations steps one by one until you get the result.

2-If you are going to use financial calculator that need from you to give me the answers with the equations that you used with short sentences that why we use this,that etc(which I mean each equations used that need explain why we use this equations to get what ? For example to get profit etc.

3- submit those questions by word or excel sheet document.