Ijust need understanding it so i can do the next one

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?