John buys bags of popcorn for $4 and sells them for $8.  How much profit does he get by selling 30 bags?
Each bag makes a profit of 8-4=$<<8-4=4>>4
So he makes a total profit of 30*4=$<<30*4=120>>120
#### 120
human
John buys bags of popcorn for $4 and sells them for $8.  How much profit does he get by selling 30 bags?
gpt
Each bag makes a profit of 8-4=$<<8-4=4>>4
So he makes a total profit of 30*4=$<<30*4=120>>120
#### 120