How much will it cost to get a new verizon plan?

So I have had my phone for almost 2 years, it is a basic phone. The phone just stopped working and I can't make any calls on it. My mom said she wasn't going to get a new one. She insists i pay for everything. I have a job, but at pizza hut and i get paid every two weeks. I also have gas and car payments. I want to get the iPhone 4. I can get the phone itself for free. I just want the basic usage/data plan for it, nothing spectacular. I want to know could i get my own bill at age 16? And how much would it cost? Does it cost anything to set it up?

You can't enter into a contract plan until you are 18.
prepaid cells do not have contracts, and you buy the time as you need it.