Find the variable h+ 1/2 = 3 1/4

Regular price is $77.00 and the discount is 5% find the sale price

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.

Don't know how to find x given these segment lengths