To evaluate $(f + g)(12)$ using the graphs provided:

1. Find $f(12)$: From the graph of $f(x)$, locate the value of $f(x)$ when $x = 12$.
2. Find $g(12)$: Similarly, from the graph of $g(x)$, find the value of $g(x)$ when $x = 12$.
3. Add the values: Finally, add $f(12)$ and $g(12)$ to get $(f + g)(12)$.

Step-by-Step Solution:

1. $f(12)$:

   • From the graph of $f(x)$, at $x = 12$, the value of $f(x)$ is $3$.

2. $g(12)$:

   • From the graph of $g(x)$, at $x = 12$, the value of $g(x)$ is $6$.

3. Calculate $(f + g)(12)$: $(f + g)(12) = f(12) + g(12) = 3 + 6 = 9$

Thus, $(f + g)(12) = 9$.

Would you like more details or have any questions?

Here are 5 related questions to consider:

1. What is $(f - g)(12)$?
2. How would you find $(f \times g)(12)$?
3. What are the values of $f(7)$ and $g(7)$?
4. How do you find the point of intersection of $f(x)$ and $g(x)$?
5. What is the domain and range of $f(x)$ and $g(x)$?

Tip: When working with functions graphically, always ensure you accurately read the values from the graph, paying close attention to the scales on the axes.