Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 凯莉有8只鸡，每只鸡每天下3个蛋。如果凯莉以每打5美元的价格出售这些蛋，如果她把所有的蛋都卖掉，她会赚多少钱？


### Response:
 每只鸡每周下21个蛋，每周所有的鸡下21 x 8 = 168个蛋。
4个星期所有的鸡下168 x 4 = 672个蛋。
672个蛋等于672 / 12 = 56打蛋。
凯莉会赚56 x 5 = 280美元。