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Mathematics 20 Online
Hanna:

2. A package of paper towels contains 3 rolls. Each package of paper towels costs $2.79. A function, f(x), is written to represent the cost of purchasing x packages of paper towels. What is the practical domain for the function f(x)? A. All real numbers B. All whole numbers C. All positive numbers D. All whole numbers that are multiples of 3

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