<human>:  As firefighters, Doug, Kai, and Eli have been putting out a lot of fires over the week. Doug has put out 20 fires for the week and Kai has put out 3 times more than Doug. Meanwhile, Eli has put out half the number of fires Kai was able to. How many fires have they put out for the entire week?
<bot>: How many fires has Kai put out? ** Kai has put out 20 x 3 = <<20*3=60>>60 fires for the week.
How many fires has Eli put out? ** Eli has put out 60 / 2 = <<60/2=30>>30 fires for the week.
How many fires have they put out for the entire week? ** Therefore, the total amount of fires they have put out over the entire week was 20 + 60 + 30 = <<20+60+30=110>>110.
#### 110