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The image contains a math problem written in Indonesian, focusing on inverse functions. It states:

**KUIS FUNGSI INVERS**
Diketahui fungsi \( f(x) = x + 3 \) dan \( g(x) = 3x - 5 \). Tentukan:
a. \( (f^\circ g)^{-1}(x) \)

Let's break this down and solve it step by step.

### Step 1: Determine \( f \circ g \)
The composition \( f \circ g \) means applying \( f(x) \) after applying \( g(x) \). In other words, \( (f \circ g)(x) = f(g(x)) \).

Given:
- \( f(x) = x + 3 \)
- \( g(x) = 3x - 5 \)

We substitute \( g(x) \) into \( f(x) \):

\[
f(g(x)) = f(3x - 5) = (3x - 5) + 3 = 3x - 2
\]

Thus, \( f \circ g(x) = 3x - 2 \).

### Step 2: Find the Inverse of \( f \circ g \)
To find the inverse of the function \( f \circ g(x) = 3x - 2 \), follow these steps:

1. Start by setting \( y = 3x - 2 \).
2. Solve for \( x \) in terms of \( y \):
   \[
   y = 3x - 2 \quad \Rightarrow \quad y + 2 = 3x \quad \Rightarrow \quad x = \frac{y + 2}{3}
   \]
3. Swap \( y \) back to \( x \), so the inverse is:
   \[
   (f \circ g)^{-1}(x) = \frac{x + 2}{3}
   \]

### Final Answer:
\[
(f \circ g)^{-1}(x) = \frac{x + 2}{3}
\]

Would you like further clarification or details on this? Let me know if you have any questions!

Here are 5 related questions for further practice:
1. What is the inverse of the function \( g(x) = 3x - 5 \)?
2. If \( f(x) = 2x + 4 \) and \( g(x) = x - 3 \), what is \( (f \circ g)(x) \)?
3. How do you find the inverse of a quadratic function?
4. What is the composition of two inverse functions?
5. Can every function have an inverse? Why or why not?

**Tip**: When finding the inverse of a function, you essentially "reverse" the operations performed on the variable \( x \). Always ensure the function is one-to-one before finding its inverse.

Diketahui fungsi f(x) = x + 3 dan g(x) = 3x - 5. Tentukan (f°g)⁻¹(x)

Learn how to find the inverse of the composition of the functions f(x) = x + 3 and g(x) = 3x - 5. This problem covers key concepts such as function composition and inverse functions. Suitable for students in Grades 10-12.

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