What is the measure of the circumference of d

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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