[20 points] a cylinder has a height of 11 centimeters and its circle bases have a radius of 9 centimeters. find the surface area of the cylinder.

Determine if the function below is continuous. a. continuous b. not continuous, 1 hole c. not continuous, > 2 holes d. not continuous, 2 holes

Using elimination, what is -4x+2y=-12 4x+8y=-24

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove