Me with number 4, i don’t know how to do this with f(x)= 1/x

The answers are given below.

Step-by-step explanation:

4.

1. f(x) =

2. x =  [taking y = f(x)]

  ⇒ y + 12 =

  ⇒f(x) =

3. f{x) - 96 =

⇒ f(x) =

4. x = [taking y = f(x)]

⇒ f(x) =

5.  24f(x) =

⇒ f(x) =

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2

30,40,50 is correct answer