Answer: C. $130$

Explanation:1. Understand the function definition: The function is given by $f(x) = 25x + 80$.

2. Substitute the given value of x into the function: We need to find the value of $f(x)$ when $x=2$, which means we need to calculate $f(2)$. Substitute $x=2$ into the function definition: $f(2) = 25(2) + 80$

3. Perform the multiplication: $25(2) = 50$

4. Perform the addition: $f(2) = 50 + 80$ $f(2) = 130$

5. Check the solution with the options: Option [C] is $130$, which matches our result.

6. Conclusion: The value of $f(x)$ when $x=2$ is $130$.