[(a/a-b) - 1] /[1-(b/b-a)]

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.

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Ihonestly have no clue if it's each or none.