Jacob bought a place mat. the place mat has four sides and only one pair of parallel sides. which could be the shape of jacob's place mat?

Y=4x^2+x-1 solve using quadratic formula

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.

Ineed me i stuck and i don’t want to get it wrong