A:AnswerYes, and thank you for asking the question. This printer is one that can connect to a computer running Mojave. In fact, most (perhaps all) of the current HP printers can work with a computer running Mojave.
A:AnswerI don't think this one has that capability - they mostly tout the Online abilities of it. When I used the 5000 series, those needed a slightly thicker headed USB cable.