Which of the following is not an operating system? linux nexus mac os windows

An excel which cell contains =b2 is copied to row below, the same column. what will be the new cell's content

Which requirement is an appropriate reason for a business to use it tools

Jason needs to learn a new web tool. he went through his books to understand more about it. now he wants hands-on experience with using that tool. what would him? jason can use websites where workspace is provided to test the results of your code.