How much should I charge my client for Maintenance for their website?

Hello Everyone!

I'm curious on how much should I charge my client to maintain his website? updates, few changes.
I am new to this job, so I am not sure how it works, i'm a freelancer.
Website Information :

  1. Wordpress
  2. They have template already, and information on their website
  3. Clients just want me to update, and maintain it.
  4. And a little bit of adding some few pages. But not require a lot of work.

I'm not sure how much should i charge him per hour.
Any idea? Please help.

Thank you.

Predictive Dialer in ASP.NET?

Hi! I have existing system already, I am using ASP.NET.
I am using a separate VOIP/Softphone so we can call.

I want to know if it is possible to do predictive dialing in ASP.NET. I've heard that it is possible in C#.

I am new in Web Development, so I am quite slow a little bit, please bare with me.

Thank you for your help in advance.