The length of the rectangle is 12 units what is the width

What are the soultion(s) to the quadratic equation 40- x^2=0

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.

Find the difference (8ab+a+2) - (3ab+6)