4 out of 12 animals were cow if you count 12 more how many will be cows

Which of these choices show a pair of equivalent expressions?

How many days was the temperature above 90 degrees?

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.