given f(x) =3x^2 +2x +k, and the remainder when f(x) is divided by x-3 is 32 then what is the value of k

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? 0.62 0.78 0.84 0.96