How much can you earn with RX 580 8GB Mining?

[Molzz]

Teacher, please tell me how much one can earn per day with a regular computer case. The system has an RX 580 8GB graphics card. This is the question everyone is curious about. Forget about internet values. I want information from friends who have actually tried it. Can you please help?
This is my system:

MSI H110M PRO-VD
G4560 Processor
8 GB RAM
Gigabyte RX 580 8GB
Can 2 or 3 graphics cards be installed in a system? Can I mine with the system I purchased for gaming? What will the earnings be, how much electricity will be consumed, and how much profit will be left after expenses?
Thank you in advance for the information you will provide.