What is the best way to protect against the loss of important files

You have written, as part of a school assignment, a research paper on the solar system. you want to share this paper on your school website. on which type of server will you upload it?

You are new to microsoft certification and want to start out by getting a certification geared around windows 8. what microsoft certification should you pursue?

Which statistical function in a spreadsheet you to see how far each number varies, on average, from the average value of the list?