Could she have a second job she hasn’t told me about?

i talk to this girl a lot and see her at her work sometimes but she rarely ever seems to work there and i'm even now wondering if its her only job. like she said she was working at this chain drug store all summer but when i go in there she is never there except for the odd shift Friday or Saturday night , she never seems to work days , it is open till 10 pm so maybe she's working the later shift but it doesn't make much sense

i wondered if she has another job cause her best friend and sister work at this chain restaurant and she used to work at a restaurant previous although never seen her there but rarely go in other than the odd Friday or Saturday but she has never said that she worked there so not sure

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although not sure how hours would work as restaurant open 11-10 pm, but she seems to work so few hours at pharmacy she'd have enough time to work some shifts there too if she has a second job
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now entirely confused as she was not at her job as usually yesterday and her girlfriend's were not at that restaurant either , think they might of went away for weekend but would not be surprised to find out she has another part time job somewhere else , also think she was going to school in September but not sure where or for what exactly so don't think she is planning to stay at that job either way
Could she have a second job she hasn’t told me about?
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