need someone to do this for me I am trying to finish some exams and I been stressing help me ASAP ty !!

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? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

Which value of y will make the inequality y< -1 false?