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

### Instruction:
Angie bought three times as many pretzels at the mall as Shelly did. Shelly bought half as many pretzels as Barry. If Barry bought 12 pretzels, how many did Angie buy?

### Response:
Shelly bought 12/2=<<12/2=6>>6 pretzels
Angie bought 6*3=<<6*3=18>>18 pretzels
#### 18