Who wants to join my mcpe smp realm? I really need more members

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

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

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?