Jane purchased a concert ticket on a web site. The original price of the ticket was $55. She used a coupon code to receive a 20% discount. The web site applied a 10% service fee to the discounted price. Jeannette’s ticket was less than the original price by what percent? *

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.