Work out
a)
4/5 of 30
b) 2/9 × 45

c) 24 x 1/6

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

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?

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?