Setup an imac without wired keyboard?

Hi, thank you for any help you can give me. I only have apple bluetooth keyboards, nothing wired. I reset my 2007 imac to factory settings with the plan to give it a relative. She ended up buying a new one instead. I want to set up my imac and cannot enter my account info, etc. because I don’t have a wired keyboard. BTW, my usb mouse is working fine. How can I type data. Also, I have a disk stuck in the drive that won’t come out. HELP! Thank you so much! Anne