Don’t know how to get the answer

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

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.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180