My brother just gave me his iPhone X and it's under Verizon. When I go to get it turned on, how much will it cost in total?

My brother just gave me his iPhone X and it's under Verizon. When I go to get it turned on, how much will it cost in total?

If you want unlimited data you are probably looking at around $100 a month (all in) assuming the phone is actually paid for. If he owes money on it and you are taking on his payments that will be on top of the $100.

Ask Verizon.