Each function below describes how something changes. Use the description to determine which function(s) describe exponential growth or decay. A. The power of a turbine is proportional to the cube of wind speed.
B. The population decreases by 12 % each year.
C. The volume of a sphere triples every minute.
D. The pollution increases at a rate of 11 grams per day.
E. The thickness of ice increases by fifty millimeters each day.