The supplement of angle b is 5 times the measure of angle b

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

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

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?