it is no.3 because the students have been determined by it's quantity while others is a not well defined set because there is no such answer because you don't know if it is rich or no.of cities and math teachers in a such particular
the mathematics was originated in a place of mesopotamia the earliest evidence of written mathematics dates back to the ancient sumerians, who built the earliest civilization in mesopotamia. they developed a complex system of metrology from 3000 bc.
opening of the
vertex is . equation of the axis of