Peter bought 5.65 lb of hamburger to make meatballs for the family reunion write 5.65 as a mixed number in simplest form and show me how to work it out

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.