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)%0D%0An=
Let's assume that the total number of minutes in the documentary is n.
Since Carly, Brittany, and Lauren streamed one-fourth of the documentary, they collectively watched (1/4)*n = n/4 minutes.
If 70 minutes of the documentary have been watched, then n/4 = 70 minutes.
Multiplying both sides of the equation by 4, we get: n = 4*70 = <<4*70=280>>280.
Therefore, there are 280 minutes in the documentary. Answer: \boxed{280}.