The average age of three girls is 37. One girl is 28, another is 43. What is the
age of the Third girl ​

How to determine whether two known pairs of points are on the same line.

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319