Help me in Finishing 3 functionalities using Firebase and JQuery

I have a sample project where Im using Firebase and Jquery to make it work. Im strucked at 3 functionalities which need to be done today. I will share my screen via anydesk, you need to work on them and test. This need to be done in 4-5hours.

Budget is $15 fixed. Please let me know if you are able to do it. Its little urgent NO time passers please.

Thanks.