What is output if the user enters 78 then 45

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

Consider the following statements, then select one of the answers below: the signal() function shown below registers "sig_handler()" as the signal handler function for the sigkill signal, without the complexity of using when the sigkill signal is sent to a process running this code, by a user typing "kill -kill ", where the correct process id is used for to target the process, sig_handler() will be executed.

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.