Help the Colombians :( enter through Chrome and sign

http://chng. it/nfYbJsFm​

Which tab should you open to find the option for adding a header?

What part of the interface displays the external references contained in a selected cell? the status bar the review tab the scroll bar the formula bar

What is domain name system (dns)? allows dynamic ip address allocation so users do not have to have a preconfigured ip address to use the network converts ip addresses into domains, or identifying labels that use a variety of recognizable naming conventions the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures the integration of communication channels into a single service