What is the answer?? And please try to explain how you got to the answer thanks

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

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 measure of sty in oo below? 130 310 230 50