Hi there,
I am Ankur Mehta, Happy go lucky geek, who is a Software Engineer and a Math teacher. I am into the field of writing and teaching since 4 years. I am very well aware about the every Math topic that you've attached with this post and I can write and also give my some of the shortcut-tricks for each of them. Also, as I am a Software Engineer I am quite familiar with Wordpress, HTML, CSS, JS and web designing stuffs. So, I think I will be a great fit for your work.
Looking forward to work with you. :)
Best,
Ankur