Question and answer choices in the pic. Please help

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

Acircle has a circumference of 7.850 units. what is its radius?

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?