What is -2,1 after a rotation 180 degrees clockwise around the origin

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

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.