What is Usable Margin?

Does Market Equity operate according to rules and regulations? What platforms does your company provide? What Instruments can I trade with Market Equity? Who is your liquidity provider? Does your company provide the VPS server? How can I test my trading potentials? How to open a Demo Account? How to open a Real Account? What are the documents required to be attached with the Account opening form? Can I trade through my smart phone or tablet? and 39 more ...