Which number is a factor of 10

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

Ill mark the brainliest if you me with the these three questions 7,8,9

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?