Factoring is the opposite of what operation

This is fractions casey shared a pizza with some friends. they each ate 1 third of the pizza. how many people shared the pizza

Geometry answer picture question pls . reason and statements

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.