What is this plz help

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4

Based on the diagrams, what is the value of x?

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