Carly, Brittany, and Lauren streamed one-fourth of an eight-episode documentary. If 70 minutes of the documentary have been watched, how many minutes are in the documentary?(1 point) n=?

Let x be the total number of minutes in the documentary.

We know that 70 minutes is one-fourth of the documentary, so (1/4)x = 70 minutes.
Multiplying both sides of the equation by 4, we get x = 280 minutes.
Therefore, there are 280 minutes in the documentary. Answer: \boxed{280}.