When a cruise price is shown on a website, is that price represented as per person

[Chris22135]

or per night? Say an internal room on a 7 day carnival cruise is labeled $800 is that for one person for the whole cruise or a nightly cost? Also, how old must you be to travel on a cruise by yourself?

 

[Bungholio]

All that should be in the fine print, but I'll wager it's per person AND per night.