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Mathematics, 05.11.2020 20:10 eichlingkera13
Three tubes of brand A toothpaste cost $12, five tubes of brand B toothpaste cost $25, and eight tubes of brand C toothpaste cost $32. Is the relationship between the number of tubes of toothpaste, x, and the cost, y, a proportional relationship? If it is, give the constant of proportionality assuming that cost depends on the number of tubes bought.
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