Mathematics, 28.09.2020 09:01 lacyjoness
tracy has a cell phone plan that provides 250 free minutes every month for a flat rate of 29$. for every minute over 250, Tracy is charged $0.35 per minute. Which of the following piecewise functions represents charges on the cell phone plan
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Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
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tracy has a cell phone plan that provides 250 free minutes every month for a flat rate of 29$. for e...
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