Well, I have a distinction myself in GRE Math section, as I got 800/800 in it and I claim to solve any questions that you find difficult. I can provide thorough solutions to all GRE math questions that you raise for me to solve.
I can answer 3-5 GRE Mathematics questions for $5 and if you want me to solve more, then the rate will go in the same proportion.
I hope there are many people finding difficulties in math questions. So don't wait, and get your GRE Math questions solved!