N paragraph 25, why does Blackie say, “They own the building”?

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

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.

Empty box + box + empty box fill in the box is equal to 30 how