Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
John buys 3 dress shirts.  They sell for $20 each.  He also has to pay 10% tax on everything.  How much did he pay in total?

### Response:
The shirts cost 3*$20=$<<3*20=60>>60 before tax
The tax came out to $60*.1=$6
So in total they paid $60+$6=$<<60+6=66>>66
#### 66