The table below shows some inputs and outputs of the invertible function f with domain all real numbers.

Step-by-step explanation:

A function and its inverse has the following properties

This implies that;

From the table,

This means that:

Note that: f(7) means the value of f(x) when x=7.

From the table f(x)=-6 when x=7.

That is why f(7)=-6.

(23*2)-12=x     x=34

step-by-step explanation:

total of apples - take away four

6-4 = 2

answer is 2 apples