I NEED HELP WITH THIS I DONT UNDERSTAND IT

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

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

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?