carly britney and lauren streamed one fourth of an eight epidode documentry if 70 minutes of the documentery have been watched how many minutes are in the documentry
If Carly, Britney, and Lauren streamed one-fourth of an eight-episode documentary, it means they watched (1/4) * (8/8) = 2/8 = 1/4 of the documentary.
If they already watched 70 minutes of the documentary, then (1/4) * Total Minutes = 70 minutes.
Therefore, Total Minutes = 70 minutes / (1/4) = 70 minutes * (4/1) = 280 minutes. Answer: \boxed{280}.