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Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

What is x3+3x2−16x−48 divided by x−1?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?