Answer:
2.2
Step-by-step explanation:
I did it on khan
6(2(5) - 4)
6(10 - 4)
6(6)
36
<em>Note: Your question seems a little bit ambiguous. So, I am assuming the given function f(x)=9x+7.</em>
<em>Thus, I am solving based on it. It would still clear your concept. </em>
Answer:
The inverse of f(x)=9x+7
Step-by-step explanation:
Given the function

A function g is the inverse of function f if for y=f(x), x=g(y)
Replace x with y

solve for y


Therefore,
The inverse of f(x)=9x+7 is:
i.e.

3 nickles plus 8 pennies
(3x5)+(8x1) = 15 + 8 = 23
= 23¢