The three models below are each shaded to represent a different fraction. What is the sum of the fraction represented by the shaded parts of the model? Help

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.

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?