What is the equation of the line?

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.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume