Answer:
Squash plant.
Explanation:
I'm not sure how to explain, but if you divide 9 by 3, you get 3. There are 3 squash plants, so that's the answer. You could also write it as a ratio...
9:3
3:1
I'm not exactly sure how to explain the ratio part either, but I hope it helped at least a little bit...have an amazing day :3