Someone is giving me a good used Motorola w 755 phone, will it work on my plan
You can check the phone's device ID here to see if it's compatible to activate- Bring Your Own Phone or Device - BYOD | Verizon Wireless
If it is able to be activated just keep in mind the coverage/services with the w755 would be limited as it was manufactured about 10 years ago, compared with the technology in more recent devices as the network also evolves.