On the coldest night in north ice, greenland, the temperature dropped from 0°c to −21°c in 7 hours. what is the average temperature change per hour?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20