Respuesta :

sqdancefan

Answer:

  B.  135

Step-by-step explanation:

For ...

  • f(x) = 3x^2 -x
  • g(x) = 2x -5

f(5) = 3·5^2 -5

   = 3·25 -5 = 75 -5 = 70

Then g(f(5)) is ...

  g(f(5)) = g(70) = 2·70 -5 = 140 -5

  g(f(5)) = 135 . . . . . matches choice B