 
<translate> Kowace kaza tana sa kwai 7 * 3 = 21 a mako. Kowane mako duk kaji suna sa kwai 21 * 8 = 168. A cikin makonni 4 duk kaji suna sa qwai 168 * 4 = 672. 672 kwai daidai 672 / 12 = 56 dozin. Kelly zai samu 56 * 5 = dala 280. Amsar ƙarshe: 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. 