Respuesta :

Answer:

  • B) F = RN/(1 - R)

Step-by-step explanation:

  • R = F/(N + F)
  • R (N+F) = F
  • RN + RF = F
  • F - RF = RN
  • F(1 - R) = RN
  • F = RN/(1 - R)

Correct option is B)