Please don't give me software commands. I want the solution on a piece of paper or anything

A Human Resource Department of a company recorded data of seven (7) randomly selected employees as below: Experience Name Salary Hours Ada 9 3 6 Bob 7 2 4 Charlie 10 3 5 David 7 2 8 Ello 11 4 5 16 6 3 Fring George 12 4 4 Alice 8 2 8 John 15 5 15 Pablo 10 4 5 Richard 9 3 4 Michael 15 6 2 Leonardo 11 5 7 Julia 13 5 16 Jennyfer 15 7 1) Create the distance matrix: choose a method and justify your choice. Who are the employees the most similar? Note: write all calculations steps