I'm not sure in which way you want to rewrite it but if you want it in mixed fractions then the answer would be 7/2+2+9/2 and if you want the answer of the equation then it would be 12. Sorry I could probably be more helpful if you would say in which way you want it written.
The two axes divide the plane into four sections called "quadrants". The quadrants are labelled with Roman numerals (not Arabic numerals), starting at the positive x-axis and going around anti-clockwise:
