Amechanic charged $220.28 to repair a car. the price included charges for 3 hours of labor and $126.53 for parts. how much does the mechanic charge per hour, d, for labor?
solve for d.

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