How can you tell whether a scatter plot is negative, positive, or approximately zero

Bring the fraction a/a-4 to a denominator of 16-a^2

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?

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²