True or false: you subtract the mean from each data value to find the absolute deviation​

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

9/10 divide by -3/15 as a mixed number