Rebecca drinks half a bottle of soda a day. She bought three 6-packs of sodas the last time she was at the store. How many bottles of soda will she have left after four weeks?
How many bottles of soda did Rebecca buy? ** Rebecca bought 3 * 6 = <<3*6=18>>18 bottles of soda.
How many half bottles of soda will Rebecca drink in four weeks? ** A week is 7 days, so she will drink 4 * 7 = <<4*7=28>>28 half bottles of soda in four weeks.
How many bottles of soda will Rebecca drink in four weeks? ** A bottle is two half bottles, so she will drink 28 / 2 = <<28/2=14>>14 bottles of soda in four weeks.
How many bottles of soda will Rebecca have left after four weeks? ** Thus, after 4 weeks, she will have 18 - 14 = <<18-14=4>>4 bottles of soda left.
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