Final answer:
The question is seeking to solve for an unknown number in a word problem related to bunnies' color difference. By representing the number of gray bunnies as an equation (G = W + 4), we've used the given number of white bunnies (9) to solve for 'G', which comes out to be 13. Hence, there are 13 gray bunnies.
Step-by-step explanation:
The subject of this question is mathematics, more specifically basic algebra and number problems. Let's denote the unknown number of gray bunnies as 'G'. According to the problem, the number of gray bunnies is 4 more than the number of white bunnies. So we can write the statement as an equation: G = W + 4, where 'W' is the number of white bunnies. We know there are 9 white bunnies, so we can substitute 'W' with 9: G = 9 + 4. So, G = 13. This means there are 13 gray bunnies.
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