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Mathematics 25 Online
kalaiyahjames:

A store sells notebooks for $3 each and does not charge sales tax. If x represents the number of notebooks Adele buys and y represents the total cost of the notebooks she buys, which best describes the values of x and y?

Mercury:

choices: A,The value of x can be any real number, and y will be a real number. B. The value of x can be any real number greater than or equal to 0, and y will be a real number greater than or equal to 0. C. The value of x can be any integer, and y will be an integer. D. The value of x can be any integer greater than or equal to 0, and y will be an integer greater than or equal to 0. thoughts? since x represents the # of notebooks, what kind of values can x take? can x be negative? can x be a non-integer value? repeat this logic with the y-values, then see which choice best matches what values x and y can take

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