Because you do the first set of parenthesis first which is (2+9) then you bring everything else down and do the second set of parenthesis (25+4) and add everything together.
Based on the situation above and the choices provided the he coordinates of S should be (2,4) while the coordinates of R is (-1, 1), and for the T it should be (–3, 3). I hope the answer will help.
