<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 Using the provided bar graph, determine the number of grade 7 students at Gauss Public School who chose fish as their favorite pet. Express your answer as a whole number of students. Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
40
Using the provided bar graph, determine the number of grade 7 students at Gauss Public School who chose fish as their favorite pet. Express your answer as a whole number of students.
test