Is the amazon prime free trial really free?

What is a sketch or blueprint of a web page that shows the structure (but not the detailed design) of basic page elements such as the logo, navigation, content, and footer?

After making a powerpoint presentation about a new line of clothing designs, henri notices that he used the word “gorgeous” on nearly every slide. what would be the  best  way to add more variety to his wording by using tools within powerpoint? using the thesaurus under the view tab, and then using the find dialog box to find and replace every instance of “gorgeous”using the spelling checker under the view tab, and then using the find dialog box to find every instance of “gorgeous” and change some of themusing the thesaurus under the review tab, and then using the find dialog box to find every instance of “gorgeous” and change some of themusing the spelling checker under the review tab, and then using the find dialog box to find and replace every instance of “gorgeous”

What phrase indicates someone has knowledge and understanding of computer,internet,mobile devices and related technologies?