Steve has 400 new emails in his inbox.  He moves half of them to the trash, and 40 percent of the remaining emails to his work folder.  How many emails are left in the inbox?
Trash:400/2=<<400/2=200>>200
400-200=<<400-200=200>>200 remaining
Work:200(.40)=80
200-80=<<200-80=120>>120 remaining
#### 120