How do you approach being asked to cover the costs for things like agent cards and food handlers license?

First of, I’m broke and asking me to cover 100 dollars in expenses before I even get a paycheck is asking a lot. I have no idea when they will “reimburse” me. They also hired me in May and just now sent out all these instructions to get done in two weeks on my own time. I need the job but why am I responsible for covering the costs that they need to run their business properly?