Bobby started his shoe collection 8 years ago with 20 shoes that he got from his mom. He bought 4 new shoes each month for 8 years. Which of the following is the domain of the function representing the number of shoes in Bobby's collection as a function of time in months?

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A: The solution is given as

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Q: 10- 10 10-

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A: Reduce the given function to simple form:

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