I need the answers please​

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.

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

The square root of 9x plus 7 plus the square rot of 2x equall to 7