 
 <translate> Rebecca bought 3 * 6 = 18 bottles of soda. A week is 7 days, so she will drink 4 * 7 = 28 half bottles of soda in four weeks. A bottle is two half bottles, so she will drink 28 / 2 = 14 bottles of soda in four weeks. Thus, after 4 weeks, she will have 18 - 14 = 4 bottles of soda left.
The final answer: 4. <ibo> Rebecca zụtara 3 * 6 = karama mmanya soda 18. Otu izu bụ ụbọchị asaa, yabụ na ọ ga-aṅụ 4 * 7 = ọkara karama soda 28 n'ime izu anọ. Otu karama bụ ọkara karama abụọ, n'ihi ya, ọ ga-aṅụ 28 / 2 = karama 14 nke soda n'ime izu anọ. Ya mere, mgbe izu 4 gasịrị, ọ ga-enwe 18 - 14 = karama mmanya 4 fọdụrụnụ. Azịza ikpeazụ ya bụ: 4. 