I think it's 1 3/4. I had one similar earlier.
The answers are blurry and hard to read. If you repost this question with a clearer picture, I would be happy to try and answer as best I can! :)
Answer:
f(2) = 729
Step-by-step explanation:
f(x) = 3^(x + 4)
Let x =2
f(2) = 3^(2 + 4)
f(2) = 3^(6)
f(2) = 729