<human>:  Tom has a job mowing lawns around his neighborhood. Each month he spends $17 on gas and mows 3 lawns, charging $12 per lawn mowed. Last month he also made extra money pulling weeds for $10. How much profit did Tom earn last month?
<bot>: How much does Tom earn each month? ** Tom earns 3 lawns * $12 per lawn = $<<3*12=36>>36 per month.
How much did Tom earn last month? ** Tom earned $36 + $10 = $<<36+10=46>>46 last month.
How much profit did Tom earn last month? ** Tom's profit last month was $46 - $17 gas money = $<<46-17=29>>29.
#### 29