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Mathematics 9 Online
OpenStudy (anonymous):

Sam is a waiter at a local restaurant where he earns wages of $6 per hour. Sam figures that he also earns about $2.50 in tips for each person he serves. Sam works 4 hours on a particular day. If n represents the number of people Sam serves that day, which of the following functions could Sam use to figure E, his total earnings for the day? E(n) = 2.5n E(n) = 4n + 10 E(n) = 2.5n + 24

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