Math what is 14 ten thousand+12 thousand

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.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.