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

### Instruction:
 城市的公交系统每天运送120万人。公交系统在13周内运送多少人？


### Response:
 13周有13周 x 7天/周 = <<13*7=91>>91天。
公交系统在13周内运送了1,200,000人/天 x 91天 = <<1200000*91=109200000>>109,200,000人。