HELP PLEASE I NEED HELP ON THIS QUESTION ASAP DUE TODAY I ONLY HAVE TWO MORE QUESTIONS

How can we find the measure of an exterior angle if we know the measurement of an interior angle

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.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.