The ratio of mary’s downloaded ipad apps to katie’s is 12 to 8. if katie has 96 apps how many does mary have?

Can anyone me with 32,33,36,37,and 40.

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.

What is the value of x when x + 7 = 21?