How can I join these zip files [pic included]

How would I go about joining these zip files with a Mac after I’ve unzipped this. Thanks for help in advance
[img]http://gyazo.com/2fbddee8e384384f76307aece6bda78f[/img]
Answer #1
Download StuffIt and select all and drag onto the icon and that should unzip all of them
Answer #2
Select all, right click, unzip.
Answer #3
Both of those didn’t work for some reason.