Round this number to the nearest tenth 4.9675

Can someone me with my hwplz(only the circled ones)

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

What describes horizontal cross section of the right rectangle 6m 8m 5m