Simplify the following expression: -8x-18

Answer this question only if you know the 30 points and

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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.