A population of 45 foxes in a wildlife preserve in size every 10 years. The function ​y=45x3^x, where x is the number of ​-year ​periods, models the population growth. How many foxes will there be after 20 ​years?

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