Temp-to-hire openings around Sacramento, barista here

A staffing agency says some roles convert to permanent after 10 weeks. I have read a lot of threads here and could not find my exact situation. Hours ramp up in the coming weeks. Is it worth applying to several at once?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

Keep a list of supervisors' names. A reference from one of them helped me land my next job.