If rain is falling at a rate of 3 inches per hour, then the function f(x) = 3x gives the number of inches of rain, f(x),
after x hours. What are the domain and range?

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.