Respuesta :

Answer : 21

We are given the expression

3(4f - 1) where f = 2

Firstly, we need to open the parenthesis

3 x4f - 3 x 1

= 12f - 3

Since, f= 2

Substitute the value of f = 2 into the above expression

= 12(2) - 3

= 24 - 3

= 21

The answer is 21