Brake fluid leaking,no brakes

I took a look on the other side of the tire an i see a rubber hose connected to a metal tube,and only the rubber hose seems to be covered in brake fluid is that the reason why back left brake leaks?

More than likely, yes. This is the flex brake line. To replace you must break fittings loose and remove the caliper to remove the flex line and replace. Then bleed out the brake line when new one installed. http://www.autozone.com/brakes-and-traction-control/brake-hose-rear/plymouth/breeze/1999/4-cylinders-x-2-4l-sfi-dohc