John raises emu.  He has 4 pens for emu and each pen has 6 emus in it.  Each female emu lays 1 egg per day.  If half the emu are females how many eggs does he get a week?
There are 6*4=<<6*4=24>>24 emus
So there are 24/2=<<24/2=12>>12 female emus
So he gets 12*7=<<12*7=84>>84 eggs a week
#### 84