Please solve this for me

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

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.

At 6 1/2 cents per pound of string beans how much does 7 pounds cost