If the mean of the data set is 7 L, find the missing volume of gas

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

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?

Mr. rose asked his students to draw a quadrilateral with 4 unequal sides. draw an example of this kind of quadrilateral.