 
<translate> N'izu ọ bụla, otu ọkụkọ na-ata àkwá iri abụọ na otu. N'izu ọ bụla, ọkụkọ niile ahụ na-ata àkwá 21*8 = 168. N'ime izu anọ, ọkụkọ niile ahụ na-ata àkwá otu narị na iri isii na asatọ* anọ = narị isii na iri asaa na abụọ. 672 àkwá hà 672 / 12 = 56 iri na abuo. Kelly ga-enweta 56 * 5 = 280 dollar. Azịza ikpeazụ: 280. <eng> Each chicken lays 7 * 3 = 21 eggs a week. Each week all the chickens lay 21 * 8 = 168 eggs. In 4 weeks all the chickens lay 168 * 4 = 672 eggs. 672 eggs equal 672 / 12 = 56 dozens. Kelly would make 56 * 5 = 280 dollars. Final answer: 280. 