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Bot GPT 3.5 B. 15
Explanation:
Let x be the number of chicken wings on the tray to start. According to the information given in the equation, after taking away 1/3 of the chicken wings, there were 9 left.
Therefore, we can set up the equation:
x - (1/3)x = 9
2/3x = 9
x = 9 / (2/3)
x = 13.5
Since the answer must be a whole number, the nearest whole number to 13.5 is 15. Therefore, there were 15 chicken wings on the tray to start.