<human>:  Kelly has 8 chickens that lay 3 eggs each per day. If Kelly sells these eggs for $5 a dozen. How much money will she make in 4 weeks if she sells all her eggs?
<bot>: How many eggs does each chicken lay? ** Each chicken lays 7 * 3 = <<7*3=21>>21 eggs a week
How many eggs do all the chickens lay in a week? ** Each week all the chickens lay 21 * 8 = <<21*8=168>>168 eggs
How many eggs do all the chickens lay in 4 weeks? ** In 4 weeks all the chickens lay 168 * 4 = <<168*4=672>>672 eggs
How many dozens are there? ** 672 eggs equal 672 / 12 = <<672/12=56>>56 dozens.
How much money will Kelly make? ** Kelly would make 56 * 5 = <<56*5=280>>280 dollars
#### 280