<human>:  Hallie is working as a waitress for $10/hour. On Monday, she works for 7 hours, and she receives $18 in tips. On Tuesday she works for 5 hours, and she receives $12 in tips. On Wednesday she works for 7 hours, and she receives $20 in tips. How much money does she earn in total from Monday to Wednesday?
<bot>: How many hours does Hallie work in total? ** Hallie works a total of 7 + 5 + 7 = <<7+5+7=19>>19 hours
How much does Hallie earn in total? ** For her hourly pay, she earns 19 * $10 = $<<19*10=190>>190
How much money does Hallie receive in total? ** In tips, she receives a total of $18 + $12 + $20 = $<<18+12+20=50>>50
How much money does Hallie earn in total? ** The total amount of money Hallie earns is $190 + $50 = $<<190+50=240>>240
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